Pour the milk over the breadcrumbs in a small bowl and set (the breadcrumbs will absorb the milk and become soggy).
Whisk the egg in a large bowl until it blends. Whisk in the salt and pepper powder, then whisk in the Parmesan and parsley.
Add the chicken/meat to the egg mixture. Use your hands to thoroughly mix the egg into the chicken/meat.
Add the onions, garlic, and soaked breadcrumbs to the chicken/meat.Mix them thoroughly into the meat with your fingers.
Take some amount of the chicken/meat mixture and gently roll between your hands to form meatballs.
Arrange the meatballs spaced slightly apart on a baking sheet. Cook under the broiler for 20 to 25 minutes or bake at 400°F for 25 to 30 minutes.
Bring the pasta sauce to a simmer and add as many meatballs as will fit comfortably in the pan. Cover and simmer for 30 to 35 minutes. The meatballs are done.
By Ria Samuel