No. 171 Sauce Piquante
1 ounce butter.
1 ounce flour.
1 gill water.
Pepper and salt to taste.
Melt the butter in a small saucepan, and when dissolved shake in the flour, stirring all the time until the paste is quite smooth; add a little salt and pepper, and then pour in gradually the water and vinegar; stir well until the sauce has boiled for a few minutes. It will then be quite ready.