Inside-Out Cheeseburgers

1/4 cup butter
1/2 tsp. garlic powder
6 hamburger buns, split
3 cheese slices
1 pound ground beef
2 Tbsp. chopped fresh onion
1/4 cup dry bread crumbs
1/4 cup milk
3 Tbsp. chili sauce
2 tsp. prepared mustard
2 tsp. Worcestershire sauce
1 tsp. cream style horseradish
4 drops hot pepper sauce
1 tsp. salt
1/8 tsp. pepper

In 1-quart bowl, cream together butter and garlic powder. Spread evenly on half of each bun. Cut cheese slices into four squares.

In 3-quart bowl, lightly mix remaining ingredients, except cheese slices. Shape meat into 12 thin patties. Place 2 pieces of cheese on each of 6 patties. Top each with second pattie and seal edges well. In heavy 10-inch fry pan toast 6 bun halves, buttered side down, over medium heat until golden; about 2 to 3 minutes. Remove from pan; keep warm. In same fry pan, cook patties to desired doneness, about 5 minutes on each side. Turn carefully. Serve on hamburger buns.