Horseradish Dressing

Grrrrrgh!
Course : Salad Dressings
From: HungryMonster.com
 

Ingredients:

1 Cup Plain nonfat yogurt : 1/3 cup reduce-calorie sour cream
2 tablespoons Prepared horseradish
1 tablespoons Finely chopped onion
 

Preparation:

Mix all ingredients.