Crockpot Swedish Meatballs

Ingredients

 * 4 	slices white bread, finely chopped
 * 2 	lbs lean ground beef
 * 4 	egg yolks
 * 4 	tablespoons chopped fresh parsley
 * 2 	tablespoons dried onion flakes
 * 1 	teaspoon salt
 * 1 	teaspoon mustard powder
 * 1 	teaspoon ground ginger
 * 1/2 	teaspoon garlic powder
 * 1/2 	teaspoon ground black pepper
 * 1   can condensed French onion soup
 * 1/4 	cup all-purpose flour
 * 1/4 	cup sour cream
 * 1 	tablespoon sauce

Directions

 * Combine bread with 1/2 cup water.
 * Let stand about 2 minutes.
 * Stir in beef, yolks, 2 tablespoons parsley, onion, salt, mustard, ginger, garlic, and pepper.
 * Roll heaping tablespoonfuls of meat mixture into balls, about 60.
 * Place in crockpot.
 * Mix together soup and flour, pour over meatballs.
 * Cook on high about 4 hours, stir.
 * Stir in sour cream and sauce.
 * Serve sprinkled with remaining parsley.