1 onion, chopped
1 stick butter
1 (10 3/4 oz.) can cream of mushroom soup
1 (12 oz.) pkg. cream cheese, softened
1 (6-7 oz.) can crab meat, drained

Saute chopped onion in butter. Add mushroom soup and cream cheese. Blend until you have a nice, creamy mixture. Fold in crab. Serve in a chafing dish with Doritos.