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Welcome to the History Extra Podcast. Today we're serving up a taster of our brand new series History's Greatest Dishes, our fresh offering that delves into the extraordinary stories behind some of the past's most remarkable delicacies. In this installment, food historian Annie Gray tells Emily Brifitt about the rise of pizza from humble Italian street food to global fast food favorite. What do we know about its origins? Why has it proven so popular? And what is the deal with pineapple on pizza?
Dr. Annie Gray
Tell me Emily, what do you think of pineapple on pizza?
Emily Briffitt
Well it's particularly contentious one. But I suppose this is the topic of today, isn't it? In this episode of History's Greatest Dishes, I'm your host, Emily Briffet, and I'm joined today by Dr. Annie Gray. Pizza. Where do we even start? I mean, I'm curious to find out what the general opinion is on pineapple on pizza.
Dr. Annie Gray
Well, it's one of those things whenever you ask people, they look a little bit shifty and often they'll go, oh, I'm not convinced. And a lot of people say that. And then you've got the people that go, oh, I love. I love pineapple on pizza. And I've always had this feeling that more people like it on pizza than don't. And I did a little bit of looking into the statistics and it turns out that back in 2022, there were some surveys done and 53% of the British population say they approve of pineapple on pizza. Only 29 say it shouldn't be there, leaving quite a few people sitting on the fence. But I think we can safely say the majority of the British population are pineapple enthusiasts.
Emily Briffitt
Huh. Interesting statistic. I wasn't quite expecting it to be such a harsh.
Dr. Annie Gray
No. And what I hate is that emboldens the people sitting on the fence and perhaps some of the people that claim they don't like pineapple on pizza because they think they shouldn't like pineapple on pizza to just come out and agree with for once. The majority is right on this. I would say the fact that, yeah, pineapple does belong on a pizza. It is a great thing on a pizza.
Emily Briffitt
So you are a pineapple enthusiast?
Dr. Annie Gray
I am a huge pineapple enthusiast. And I mean proper pineapple. I don't mean, as I once suffered, pineapple chutney and ham hock on a pizza. Stop trying to make the Hawaiian pizza into something cool. It should be tin pineapple and preferably Spam, actually. Yeah, because to the pineapple. Ham and pineapple pizza was invented, notoriously invented by a Greek restaurateur in Toronto who named it for Hawaii because Hawaii was the home of the Jim Doll Pineapple Company. So big on pineapple. And in Hawaii, Spam is a really, really big, very popular meat because of the number of American troops that were stationed there and continued to be stationed there, actually. But post Second World War, Spam became a really big thing in Hawaii. So to me, the true Hawaiian peanuts, it shouldn't just be ham and pineapple, it should be Spam and pineapple. Spam, of course, really crispy really beautiful, really wonderful thing. That is incredibly delicious. Despite the fact that perhaps not the best thing for us in the world, they don't put much on it. So I think Spam and pineapple pizza. Unadulterated, glorious. Pineapple from a can. Spam from a can. I don't put tomato on mine, but you can mozzarella. I also put parmesan and a little bit of cheddar on mine as well. Cracked black pepper. Bop di uncle. That is one of the best pizzas in the world. But do not muck about with it. Do not tart it up, don't try and make it bougie. Just give me the ham and pineapple.
Emily Briffitt
That sounds interesting. Is it always the tinned pineapple? Is that the tradition for tinned pineapple?
Dr. Annie Gray
Oh, yeah. I mean, you know, fresh pineapple goes off. It's difficult to prepare in a busy restaura context. You're not gonna bother with a fresh pineapple. And fresh pineapple's too acidic. The enzymes in it are too, they're too aggressive. So you actually want, I mean, tin pineapple in juice, I would say, not sugar. Cause it makes it too sweet. The balance is very important. You want the saltiness of the spam or ham or bacon and the sweetness of the pineapple, but not so much sweetness that it becomes jam. So it's about a balance.
Emily Briffitt
And so Greek recipe, but the pineapple's the Hawaiian thing.
Dr. Annie Gray
Greek restaurateur in Canada working with a nominally Italian dish, calling it after Hawaii. Yeah.
Emily Briffitt
Amazing. I think there's going to be some stories of fake law and interesting connections in this particular episode.
Dr. Annie Gray
Yeah. And the global nature of food, actually, and the way in which something that purports to be from one country is perhaps mediated through the influence of another.
Emily Briffitt
So we should definitely come on to the origins. But before that, I need to ask you if we were to describe pizza. Everyone knows, most people, I would imagine, know what a pizza is. But if you could define it, describe it how would you?
Dr. Annie Gray
Pizza is a yeast based flat bread. So a bread dough rolled out, thinly topped with some toppings, slammed in a very hot oven so that it crisps up, curls up and then is served. There are variations on the theme of pizza. Some pizzas are more like, I would argue bread dough based tarts or pies. So a deep dish pizza, really, is it a pizza? I'd argue it's not a pizza. And you also get pizzas that are made with non bread doughs. So you do you get the occasional cauliflower crust pizza, again, I would argue, not a pizza. Pizza adjacent pizza Wrong, actually, just wrong pizza. But basically it's a flatbread. It's a flatbread with toppings.
Emily Briffitt
What makes a pizza a pizza then? You've added caveats there of maybe a pizza, maybe not a pizza.
Dr. Annie Gray
They're not pizzas. They're not pizzas. What makes a pizza a pizza is that it's got bread dough underneath and it's got toppings on top. Beyond that and it's cooked in an oven, a very hot oven, I would say. But beyond that, what makes pizza a pizza? The fact that it's called a pizza. I do think the bread dough's non negotiable. I think you can stretch it to a gluten free crust. Obviously some people do need to eat gluten free crust, but it does need to be a bread dough and it does need to have a topping on top.
Emily Briffitt
So where does the name pizza actually come from then?
Dr. Annie Gray
It's Italian, as you might imagine. There used to be people called pizziolas in Italy. The name occurs well before pizza, as we know it occurs. You get mentions of pizza. No one's quite sure what they are. There's a lot of debate over pizza when it a pizza. A pizza one is a pizza, a flatbread. Pizza itself really is a phenomenon of the probably 17th century onwards. There are clearly pizza like things being made before then. But pizza as we know it as something which is effectively a fairly cheap street food is a story of late 16th, but really 17th century and a story very much attached to Naples in Italy.
Emily Briffitt
I've heard stories that this might be like more of an ancient thing.
Dr. Annie Gray
That's because there was a fresco in Pompeii that was uncovered a few years ago and hit the headlines, a Roman pizza.
Emily Briffitt
Seemingly not a Roman pizza.
Dr. Annie Gray
Well, if you define pizza as a flatbread with stuff on, then yeah, it's a pizza, it's a flatbread and it's got figs on. I don't think we would define it as pizza. You can play with definitions and they are quite slippery things, especially when it comes to food. Not least because pizza has changed, as with all foods, a lot over time. The thing that was uncovered in Pompeii is undeniably a flatbread with some stuff on. I wouldn't call it a pizza personally, because we do know what pizza is and you can play with the definition. I mean, you get, you get sweet pizzas occasionally. You know, I think at that point you're into the very, very gray Areas on the edges of pizza. It's sort of really Nutella and pineapple on a pizza. Is it a pizza? Is it a flatbread? That's the bit where I think it depends on your own personal view. I'm not going to call the thing that was uncovered on the fresco at Pompeii a pizza. I'm going that there is a very long tradition in pretty much every culture, but especially wheat based cultures, so, for example, Western Europe, of making flatbreads in an oven or indeed on a griddle and putting stuff on them. You know, at that point you're getting into the idea that in fact an open sandwich might be a pizza, or a tortilla with some stuff on might be a pizza. And at that point you start to realise that whole definition thing is problematic. So you come right back to the middle and you go, okay, it's not a pizza. I'm just gonna go, it's not a pizza.
Emily Briffitt
It seems a fair place to end up because this is one of the other contentious. So we've got pineapple. The pineapple debate we've got is when
Dr. Annie Gray
is a pizza what pizza? Not a pizza? When it's a flatbread. Yeah.
Emily Briffitt
So let's park that there.
Dr. Annie Gray
Flatbread.
Emily Briffitt
Flatbread is our ingredient of this episode. Tell us about the history of this.
Dr. Annie Gray
This all goes really around the history of ovens. Ovens are expensive things to build. They were expensive things to build. They were relatively prestigious. Not always. You've got communal o ovens, which would be something built in the middle of a village, shared by the whole village. But in essence, an oven is not usually a particularly useful fuel efficient way to cook. Because most ovens in the past, and certainly ovens as they developed from the later Roman period onwards, you get Dutch ovens, which is coals with a sort of thing put on top, which are proto ovens. But the kind of oven as we know it, the beehive oven, is something that requires brick or stone or clay or mud construction. That is a very large dome that you put in order to heat it. You put lots of fuel into usually sticks. So bundles of sticks put in, set on fire. You get that as hot as humanly possible. Really, really, really, really stinkingly hot. You rake out the ash and the residual heat that's left bounces off all of those walls and cooks whatever is inside. Think about a modern pizza oven, what we would call a pizza oven. That's basically an oven in the past, a beehive oven. You get them in country houses set into walls. You get Standalone ovens, you get all sorts of ovens, but essentially they are a bit of a ball, are fiddly to use. So an oven is a relatively prestigious thing for the majority of people. Therefore, much cooking really for most of history was done on a baked stone or a griddle stone or a girdle as they were known in Scotland. Big massive piece of cast iron could also be stone. And you would make whatever it was, usually a yeasted bread, certainly in, in the UK and in Western Europe, usually yeasted, be that based on oats or wheat flour or chickpea flour, whatever it was that you had to hand, you would make it, you roll it out, mainly yeasted, not always yeasted, and then you would stick it on your griddle stone and because it was flat, it would cook very quickly, just in the heat from below, turn it over, cook again, serve. So scones are a sort of flatbread. Staffordshire oat cakes are a sort of flatbread. Flatbreads with yeast that are rolled out and turned into, for example, pizzas are a type of flatbread, arguably something that's just pastry and put on a griddle stone and flipped over is a flatbread. Flatbreads are even more definitionally interesting than pizza. But flatbread is, I mean, it's whatever you want it to be. You look over in South America, you've got flatbreads based on maize, so tortillas, as we would now call them. You've got rice based flatbreads in China, Chinese pancakes and things like that. Every culture's got something where you mix some grains with some liquid, you stick it on something that's hot, you turn it over, that's a flatbread.
Podcast Host
If you enjoyed that and want to hear more, just search for history's greatest dishes or click the link in the description to find the full episodes and and follow the feed.
Title: Preview: The Surprising History of Pizza
Podcast: HistoryExtra Podcast
Host: Emily Briffitt
Guest: Dr. Annie Gray, Food Historian
Release Date: April 24, 2026
This preview episode serves as a taster for the new HistoryExtra series, History's Greatest Dishes. Food historian Dr. Annie Gray and host Emily Briffitt dive into the rich, multi-layered story of pizza—from its origins in Italian street food to its global dominance as a comfort classic. They debate contentious toppings (especially pineapple), discuss what truly defines a "pizza," and explore how this humble dish reflects broader trends in world history.
[02:46–05:41]
Controversy Around Pineapple:
The episode opens by wading into "the most contentious issue" in the world of pizza—pineapple as a topping.
"Back in 2022, there were some surveys done and 53% of the British population say they approve of pineapple on pizza...the majority of the British population are pineapple enthusiasts." (Dr. Annie Gray, 03:13)
Dr. Gray’s Pineapple Pizza Philosophy:
Annie Gray leans enthusiastically pro-pineapple but with strict caveats:
"Proper pineapple. I don't mean, as I once suffered, pineapple chutney and ham hock on a pizza. Stop trying to make the Hawaiian pizza into something cool. It should be tin pineapple and preferably Spam, actually." (Dr. Annie Gray, 04:17)
She ties the creation of the Hawaiian pizza to its multicultural roots (invented by a Greek in Canada, named for Hawaii, inspired by local American and Hawaiian military cuisine).
Traditional Ingredients:
Dr. Gray insists tinned pineapple is the classic and preferable ingredient, not fresh:
"Fresh pineapple's too acidic. The enzymes in it are too, they're too aggressive. So you actually want tin pineapple in juice, I would say, not sugar. Cause it makes it too sweet. The balance is very important." (Dr. Annie Gray, 05:46)
[06:37–08:06]
Dr. Gray describes pizza as:
"A yeast based flat bread...rolled out, thinly topped with some toppings, slammed in a very hot oven so that it crisps up, curls up and then is served." (Dr. Annie Gray, 06:51)
She sets strict boundaries for the definition:
"Deep dish pizza, really, is it a pizza? I'd argue it's not a pizza...cauliflower crust pizza, again, I would argue, not a pizza. Pizza adjacent pizza. Wrong, actually, just wrong pizza." (Dr. Annie Gray, 06:51)
Key criteria: Bread dough base and toppings, cooked in a hot oven.
"I do think the bread dough's non negotiable...it does need to have a topping on top." (Dr. Annie Gray, 07:39)
[08:06–10:18]
Origins of the Name:
The term "pizza" is Italian, but its etymology and the formalization of the dish are still debated. Mentions of 'pizza' appear in historical records, but what was meant by pizza is sometimes unclear.
Is Pizza an Ancient Dish?
Emily references reports of Roman "pizza" from a fresco in Pompeii.
Dr. Gray challenges the link:
"If you define pizza as a flatbread with stuff on, then yeah, it's a pizza, it's a flatbread and it's got figs on. I don't think we would define it as pizza...you can play with the definition." (Dr. Annie Gray, 08:56)
She argues that while most cultures made flatbreads with toppings, the true 'pizza,' as we understand it, is a late 17th-century phenomenon, closely associated with Naples.
"Pizza itself really is a phenomenon of the probably 17th century onwards...a really cheap street food is a story of late 16th, but really 17th century and a story very much attached to Naples in Italy." (Dr. Annie Gray, 08:44)
Flexible Boundaries:
The conversation highlights how food definitions shift over time and how many classic dishes blur cultural and historical lines.
[10:26–13:11]
Oven and Flatbread Technology:
Dr. Gray explains that the history of pizza is tied to the history of baking technology:
Universal Appeal:
Every wheat- or grain-based culture has some variation of a flatbread made with whatever ingredients were at hand.
"Every culture's got something where you mix some grains with some liquid, you stick it on something that's hot, you turn it over, that's a flatbread." (Dr. Annie Gray, 13:11)
On the pineapple debate:
"I think Spam and pineapple pizza. Unadulterated, glorious. Pineapple from a can. Spam from a can. I don't put tomato on mine, but you can mozzarella. I also put parmesan and a little bit of cheddar on mine as well. Cracked black pepper. Bop di uncle. That is one of the best pizzas in the world. But do not muck about with it. Do not tart it up, don't try and make it bougie. Just give me the ham and pineapple."
— Dr. Annie Gray, [05:17]
On pizza definitions:
"What makes a pizza a pizza is that it's got bread dough underneath and it's got toppings on top...but beyond that, what makes pizza a pizza? The fact that it's called a pizza."
— Dr. Annie Gray, [07:39]
On flexible food histories:
"...the global nature of food, actually, and the way in which something that purports to be from one country is perhaps mediated through the influence of another."
— Dr. Annie Gray, [06:28]
The conversation is lively, witty, and personable, filled with humor and clear historical expertise. Dr. Annie Gray grounds complex debates in accessible language, reveling in both the details (Spam vs. ham, canned vs. fresh pineapple) and the big picture cultural trends.
This preview teases a rich, globe-trotting history for pizza, resisting easy definitions and embracing culinary hybridity. The episode covers not just celebrated controversies like pineapple, but also the deeper forces—technological, cultural, and social—that shaped one of the world’s favorite foods. For the full story, listeners are encouraged to follow the series History's Greatest Dishes.