Potatoes Au Gratin - cooking recipe

Ingredients

1/3 to 1/2 c. onion
1/4 to 1/2 c. butter
1 1/2 Tbsp. prepared mustard
1/4 tsp. pepper
1 tsp. salt
1 c. milk
1/4 lb. cheese (your favorite)
6 medium potatoes

Preparation

Cook potatoes; cool well, then peel and shred.
Set aside. Melt butter; add the rest of the ingredients and heat until cheese is melted, stirring constantly.
Add to potatoes; stir well and bake at 350\u00b0 for 40 to 45 minutes.
Yields 6 to 7 servings.