Beer Dressing for Potato Salad
This recipe comes from the Concert in Dining cookbook

1/2 cup chopped onion
3 Tablespoons salad oil
2 Tablespoons flour
1 1/2 teaspoons salt
pepper
2 Tablespoons sugar
1 1/2 cups beer
1/4 cup vinegar

Saute onions 10 minutes in oil;addd flour, salt, pepper and sugar. Stir in beer and vinegar, stirring constantly to boiling point. Cook over low heat 5 minutes. Cool and pour over potato salad.