Make the Dough:

1. Combine flour, cornmeal, yeast, sugar, and salt in a stand mixer bowl.
2. Add water and melted butter, mixing until combined.
3. Knead for 4-5 minutes until smooth and elastic.
4. Transfer dough to a lightly oiled bowl, cover, and let rise until doubled (about 1 hour).

2. Prepare the Sauce:

1. Heat olive oil in a pan, sauté onion and garlic until softened.
2. Add crushed tomatoes, sugar, basil, and oregano. Simmer for 25-30 minutes until reduced.
3. Season with salt and pepper.

3. Roll and Shape the Dough:

1. Roll dough into a 15×12-inch rectangle. Spread softened butter over it.
2. Roll into a tight cylinder, then flatten into an 18×4-inch rectangle.
3. Cut into two pieces, shape into balls, and refrigerate for 40-50 minutes.

4. Assemble the Pizza:

1. Preheat the oven to 425°F. Oil two 9-inch cake pans with 2 tablespoons of olive oil each.
2. Roll each dough ball into a disk, pressing into the pans and up the sides.
3. Layer mozzarella, sausage, sauce, and Parmesan in each pan.

5. Bake the Pizza:

1. Bake on the lowest rack for 20-25 minutes until golden brown.
2. Let rest for 10 minutes before slicing.