Dad'S Salad Dressing - cooking recipe

Ingredients

1 small onion
1 c. mayonnaise
1/3 c. oil
1/4 c. ketchup
2 Tbsp. sugar
2 Tbsp. vinegar
1 tsp. mustard
1/2 tsp. salt
1/2 tsp. paprika
1/4 tsp. celery seed
dash of pepper

Preparation

Mix all the ingredients in a blender.
Refrigerate until cold. Serve on green salad.