1-1/2 lbs. ground beef

1-1/2 tsp. salt

1/4 tsp. pepper

2 Tbsp. mayonnaise

1/2 tsp. dry mustard

2 Tbsp. water

1/4 lb. blue or American cheese, grated

1 Tbsp. Worcestershire sauce

Mix beef with salt and pepper and water. Mash blue or American cheese and blend with Worcestershire sauce, mayonnaise and mustard. Divide seasoned meat into four parts; make two thin patties from each. In the center of four patties put 1-1/2 tablespoons of the cheese mixture. Top with remaining patties and pinch edges together well. Broil under moderate heat about six minutes on each side.