In a bowl, mix warm water, sugar, and yeast. Let sit for 5 minutes until foamy.
In a large bowl, combine flour, cornmeal, and salt.
Add melted butter, olive oil, and yeast mixture to dry ingredients. Mix until a dough forms.
Knead for 5 minutes, then cover and let rise for 1 hour (or until doubled).
Heat olive oil in a pan, sauté garlic until fragrant.
Add crushed tomatoes, oregano, basil, red pepper flakes, salt, and pepper.
Simmer for 15-20 minutes until thickened.
Preheat oven to 425°F (220°C).
Roll out dough and press into a greased deep dish pan, covering the bottom and sides.
Layer mozzarella and provolone cheese on the dough.
Add cooked sausage, then spread tomato sauce on top.
Sprinkle Parmesan cheese over the sauce.
Bake for 30-35 minutes until crust is golden and sauce is bubbly.
Let cool for 10 minutes before slicing.