Sal's Old-School Meatballs

Ingredients

• 1 pound ground veal
• 1 pound ground pork
• 1 pound ground beef
• 4 slices white sandwich bread, torn
• 1 1/2 cup milk
• 3 eggs
• 2 cup freshly grated parmesan cheese, plus more for garnish
• 1 cup grated pecorino cheese
• 6 tablespoon chopped flat-leaf parsley, plus more for garnish
• 2 tablespoon kosher salt
• 1/2 teaspoon freshly ground pepper
• 1 clove garlic, minced
• 1 1/2 cup tipo 00 flour, or all-purpose flour
• 1/4 cup grapeseed oil