Potato Salad with Beer Dressing

Description
From my one of my great grandmothers. Refined, updated and simplified by my grandmother, preserved by my mother, passed on to me.

Ingredients

 * 6 medium potatoes
 * 4 slices bacon
 * 1 tablespoon chopped onions
 * 1 stalk celery, chopped
 * 1 teaspoon salt
 * 2 tablespoons butter
 * 2 tablespoons unbleached flour
 * ½ teaspoon dry mustard
 * 1 tablespoon sugar
 * 1 can beer, any brand
 * ½ teaspoon Tabasco sauce
 * 2 tablespoons chopped fresh parsley

Directions

 * 1) Boil potatoes in medium-size saucepan until just tender.
 * 2) Peel and slice.
 * 3) Fry bacon until crisp.
 * 4) Break into small pieces and mix with onion, celery and salt; set aside.
 * 5) Stir melted butter and flour in a small saucepan until blended.
 * 6) Add mustard and sugar.
 * 7) Slowly stir in beer and Tabasco sauce.
 * 8) Bring to boil, stirring constantly.
 * 9) Pour over potatoes.
 * 10) Sprinkle with parsley.
 * 11) Toss lightly and let stand 1 hour.
 * 12) Add bacon mixture; toss gently and serve.