Mama'S Barbecue Sauce - cooking recipe

Ingredients

1 medium sized onion, chopped
2 Tbsp. butter
2 Tbsp. vinegar
2 Tbsp. brown sugar
4 Tbsp. lemon juice
1 c. ketchup
1/2 c. chopped parsley
1/2 Tbsp. prepared mustard
1/3 c. water
3 Tbsp. Worcestershire sauce
salt (to taste)
cayenne pepper (optional)

Preparation

Brown onion in butter.
Add rest of ingredients and simmer 30 minutes.