Stuffed Hamburgers - cooking recipe

Ingredients

1 lb. ground meat
1/2 c. canned milk
1 c. bread crumbs
1 tsp. salt
1/8 tsp. pepper
onion slices
4 tsp. mustard

Preparation

Combine.
Shape into 8 flat patties.
Spread 4 patties with about 1 teaspoon mustard.
Cover with remaining patties.
Pinch together with wet hands.