Brian's Favorite Sauce

Ingridients of Brian's Favorite Sauce:

• 1 onion, chopped
• 6 tablespoons olive oil
• 2 cloves garlic, minced
• 1 pound sweet Italian sausage, casings removed
• 2 (15 ounce) cans tomato sauce
• 1/2 teaspoon ground black pepper
• 1/2 teaspoon dried oregano
• 1 teaspoon dried basil
• 4 (16 ounce) cans diced tomatoes
• 1 teaspoon salt
• 2 tablespoons white sugar
• 1 pinch cayenne pepper