Blended French Dressing - cooking recipe

Ingredients

1 medium onion, chopped
1 c. salad oil
1 c. ketchup
3/4 c. vinegar
1 1/2 c. sugar
1 tsp. salt
1 tsp. prepared mustard

Preparation

Blend onion and oil until white.
Add remaining ingredients in blender.
Chill.