Grandma pizza is a lesser-known style whose name likely references its origins in the Italian home. Its key distinction concerns how it's made and how long it takes.
Grandma pizza has a preparation process similar to Sicilian pizza, as both types begin with dough stretched out thin across an oiled sheet pan, creating a crispy, brown crust.
Grandma's pizza dough is placed in the oven before it has been allowed to rise, resulting in a dense crust that resembles more of a cracker. It's thinner than a Sicilian pizza.
This pizza has a unique style regarding toppings. The unleavened dough is first blanketed with sliced mozzarella cheese, and then tomato sauce is imperfectly drizzled over it.