1 lb. ground beef
1/3 c. chili sauce
1 1/2 tsp. Worcestershire sauce
1 1/2 tsp. mustard
1 1/2 tsp. horseradish
1 tsp. chopped onion
1 tsp. salt
Dash of pepper
Hamburger buns
Melted butter

Combine all ingredients except buns and butter. Spread mixture on each half of buns. Place buns on cookie sheet. Broil 10 minutes about 5" from flame.