The Best Spinach Salad Dressing - cooking recipe

Ingredients

1 small onion, chopped
1 c. vegetable oil
1/3 c. cider vinegar
1/3 c. sugar
1 Tbsp. prepared mustard
1 tsp. celery seed
1/2 tsp. salt
1/2 tsp. black pepper

Preparation

In a blender, combine all ingredients and mix well. Chill thoroughly and stir before using. Makes 1-1/2 cups.