Barbecue Sauce - cooking recipe

Ingredients

1 medium onion, chopped
1/2 c. diced celery
1/4 c. cider vinegar
2 tsp. salt
1 1/4 catsup
1/4 c. brown sugar
1 1/2 Tbsp. Worcestershire sauce
1 tsp. prepared mustard

Preparation

Put all ingredients, plus 3/4 cup of water, in a blender; mix well.