01 -
Mix your ground beef, bread crumbs, onion, egg, salt, and pepper in a bowl until well combined.
02 -
Roll the meat mixture into 1½-inch meatballs.
03 -
Brown those meatballs in a large nonstick skillet over medium heat for about 8-10 minutes until cooked through.
04 -
Mix up your brown sugar, water, ketchup, vinegar, soy sauce, and cornstarch until smooth.
05 -
Pour that sweet and sour sauce over your meatballs and let it simmer on low for 3-5 minutes until nice and thick.