Cabbage-Salad Dressing

3/4 c. vinegar 1/2 tsp. mustard, if desired 1/4 c. water 1/2 tsp. salt 2 Tb. butter 3 Tb. sugar 1 Tb. flour

Heat the water and the vinegar; melt the butter in a saucepan, add to it the flour, mustard, salt, and sugar, stir until well blended, and then pour in the hot liquid. Cook for a few minutes, stirring constantly to prevent the formation of lumps. Pour over the cabbage while hot; allow it to cool and then serve on plates garnished with lettuce.