#DeepDishPizzaDay

Deep dish pizza has one of those origin stories where everyone argues about who actually invented it. But the most widely accepted version points to Pizzeria Uno in Chicago, which opened at 29 East Ohio Street in 1943. The restaurant is usually credited to Ike Sewell, but pizza historians have dug up evidence that his business partner Ric Riccardo was the real creative force behind the thick, pan-baked pizza that would become Chicago's signature food.

The Real Story Behind the Invention

Here's what most people don't know: Sewell likely didn't even have an ownership stake in Pizzeria Uno when it first opened in December 1943. His wife Florence signed a partnership agreement in 1944, which suggests Ike came aboard after the deep dish concept was already established. Riccardo had found a pizza oven and round cast iron pans in the kitchen and started experimenting with a more substantial, Americanized pizza - something you'd eat with a knife and fork instead of folding in half.

The original recipe, published in 1945, was surprisingly rich. The dough used scalded milk, butter, and sugar - more like a pastry than traditional pizza dough. A cook named Alice Mae Redmond later simplified the recipe using water and olive oil, which became the foundation of the deep dish crust most people know today.

What Makes Deep Dish Different

Deep dish isn't just a thick pizza. The construction is completely inverted. Cheese goes on the bottom, directly on top of the dough. Toppings go in the middle. And chunky tomato sauce goes on top - the opposite of every other pizza style. The whole thing bakes in a well-oiled cast iron or steel pan, which creates that distinctive buttery, almost fried crust along the edges. A proper deep dish takes 30 to 45 minutes to bake, which is why ordering one at a restaurant requires patience.

April 5th and the Pizza Debate

National Deep Dish Pizza Day falls on April 5th, and the hashtag reliably generates a firestorm every year. The thin crust vs. deep dish debate is one of those arguments that never gets old on social media because people have genuinely strong opinions about it. New Yorkers will tell you deep dish isn't real pizza. Chicagoans will tell you thin crust is a cracker with toppings. This kind of debate content is engagement gold.

What to Post

Photos of deep dish pizza perform extremely well because the visual is so dramatic - that cross-section shot showing layers of cheese, sausage, and sauce is practically designed for Instagram. Poll content asking followers to pick a side drives comments. Recipe content and homemade attempts get saved. And if you're a pizza restaurant, this is your day to show off what you do best. Tag your city, tag your pizza style, and let the debate do the marketing for you.