Barbecue Sauce(Large Quantity) - cooking recipe

Ingredients

1 (No. 10) can catsup
12 c. water
4 c. onions, chopped
4 c. celery, chopped
1 1/2 c. vinegar (any kind)
1 c. lemon juice
3/4 c. prepared mustard
1 1/2 c. Worcestershire sauce
3 tsp. salt
1 1/2 c. brown sugar
3/4 c. butter
red pepper pod (whole)

Preparation

Melt butter in saucepan.
Add onions and celery; cook gently for 10 minutes.
Add all the remaining ingredients except lemon juice.
Cook until smooth and thickened.
Just before removing from heat, add the lemon juice.