Broccoli, Pepperoni and Three Cheese Calzones

INGREDIENTS

• 2 1/4 teaspoons active dry yeast
• 1 1/2 cups warm water (110 degrees F/45 degrees C)
• 4 cups all-purpose flour
• 1 teaspoon salt
• 1 1/2 teaspoons white sugar
• 1 tablespoon olive oil
• 1 1/2 heads fresh broccoli
• 2/3 cup shredded provolone cheese
• 1/3 cup shredded mozzarella cheese
• 1/4 cup grated Parmesan cheese
• 1 clove garlic, minced
• 1 cup diced pepperoni
• 1/4 cup olive oil
• salt and pepper to taste
• 1 egg, beaten
• 1 tablespoon water
• 2 tablespoons cornmeal