Pork Barbecue - cooking recipe

Ingredients

1/2 tsp. chili powder
1/2 tsp. celery salt
1/2 tsp. onion salt
1 Tbsp. vinegar
1 Tbsp. butter (margarine)
1 small bottle catsup
1 bottle water (after the catsup is emptied)
3 lb. pork roast, cooked and shredded

Preparation

Mix all ingredients, except pork, and simmer 1/2 hour or until thick.
Pour over pork which has had fat removed.
Stir and simmer 15 to 20 minutes.
Serve on hamburger buns.