Sourdough Calzone Recipe

Ingredients

• 1 cup (240g) active sourdough starter (fed and bubbly)
• 2 ½ cups (300g) all-purpose flour
• ¾ cup (180ml) warm water (about 80°F)
• 1 teaspoon salt
• 1 tablespoon olive oil
• 1 cup shredded mozzarella cheese
• ½ cup ricotta cheese
• ¼ cup grated Parmesan cheese
• 1 cup cooked Italian sausage (crumbled)
• 1 cup fresh baby spinach (roughly chopped)
• ½ cup sliced mushrooms
• 1 small garlic clove (minced)
• 1 teaspoon dried oregano
• Salt and pepper to taste
• 1 cup marinara sauce (preferably homemade or high-quality store-bought)
• 1 teaspoon crushed red pepper flakes (optional for mild heat)
• 1 teaspoon dried basil
• 1 egg (beaten, for egg wash)
• Fresh basil leaves (for garnish)
• Extra grated Parmesan (for sprinkling)