1/2 lb. frankfurters
1 tbsp. flour
3/4 c. water
1/2 c. ketchup
2 tbsp. vinegar
2 tbsp. sugar
1 tsp. prepared mustard

Halve frankfurters lengthwise, place in skillet. In sauce pan blend flour with 2 tablespoons water. Add remaining water, ketchup, vinegar, sugar and mustard. Cook constantly until thickened. Pour over frankfurters. Cover and simmer 30 minutes.