3/4 c. mayonnaise (Kraft preferred)
1/3 c. Parmesan cheese
1/2 c. chopped onion
3 drops Worcestershire sauce
Rye rounds or rye bread

Blend all ingredients except bread. Spread on rye rounds or rye bread. Place these on a cookie sheet and warm under a pre-heated broiler until bubbly and hot. Serve immediately.