Chicago-Style Deep Dish Pizza

Name: Chicago-Style Deep Dish Pizza
Prep time: 2 h
Cook time: 20 min
Total time: 2 h 20 min
Cuisine: American
Ingredients: 1 1/4 teaspoon instant dry yeast; 1 teaspon sugar; 1/2 cup (120 ml) lukewarm water; 2 cups (240g) all-purpose flour; 1 1/2 Tablespoon yellow corn meal; 3/4 teaspoon salt; 2 Tablespoons (30g) butter, melted and slightly cold; 1 Tablespoon canola oil; 1 Tablespoon olive oil (for greasing the bowl only); 2 Tablespoons olive oil; 1 small onion, grated or minced; 1 Tablespoon dried oregano; 1/2 Tablespoon crushed red pepper flakes (optional); 3 garlic cloves, minced; 1 can (28 oz/793g) crushed tomatoes with basil; 2 teaspoons tomato paste; 6 oz (170g) mozzarella cheese, sliced; 2 Italian sausages, sliced (optional); 2-3 Tablespoons (30-45g) parmesan cheese