Endless Summer Stromboli

Ingredients

• 1 tablespoon salt
• 1 tablespoon sugar
• 1 (1/4-ounce) packet fresh fast-acting yeast
• 1 1/2 cups warm water, between 100 and 115 degrees F, as measured with a candy thermometer (any hotter will kill the yeast - an organic leavener, too cool and the yeast won't be activated)
• 4 cups all-purpose flour, plus some extra for dough board
• 1/4 cup cornmeal, for pizza stones
• 2 tablespoons olive oil
• 4 cloves garlic, chopped
• 2 medium onions, chopped
• 1 tablespoon chopped fresh parsley leaves
• 1/4 teaspoon salt
• 1 cup (16-ounce can) tomato chunks or chunky tomato sauce
• 1/2 cup packed fresh basil leaves, chopped
• 1/2 pound fresh mozzarella cheese, sliced