Comeback Dressing

1/2 cup mayo
1/2 cup sour cream
1/4 cup olive oil
1/2 cup chili sauce
1 tbs grated onion
1 tsp salt
1/2 tsp pepper
2 tsp cold water
1 tbs Worcestershire
5 drop Tabasco
2 cloves garlic, minced
1 tbs Dijon mustard

Blend together and refrigerate over night.