Giant Mozzarella Stuffed Meatballs

Ingredients (20)

• 2 cups bread crumbs (from about 1/4 loaf of stale Italian bread)
• 1 cup milk
• 2 lbs ground beef
• 2 eggs, lightly beaten
• 2 teaspoons Kosher salt
• 1/2 teaspoon red pepper flakes
• 1/2 cup chopped fresh parsley
• 1/2 cup shredded Parmesan cheese
• 1/4 cup grated onion
• 3 cloves grated garlic
• 6 mini mozzarella balls
• 2 Tablespoons olive oil
• 1 yellow onion
• 6 cloves garlic
• 1/2 teaspoon red pepper flakes
• 2 28 ounce cans crushed tomatoes
• 8 basil leaves
• 1 Tablespoon sugar
• 1 Tablespoon balsamic vinegar
• Salt and pepper, to taste