Barbecued Frankfurters - cooking recipe

Ingredients

1 medium onion
2 Tbsp. butter
2 Tbsp. vinegar
2 Tbsp. brown sugar
1 c. ketchup
1/2 Tbsp. mustard
1/2 Tbsp. chopped green pepper
1/2 c. water
1/2 lb. frankfurters

Preparation

Brown onion and green pepper in butter.
Add rest of ingredients except franks.
Cook slowly for 20 minutes.
Prick skins of franks with a fork; place in sauce, cover and cook slowly until heated thoroughly.