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.