4 med. potatoes
1 tbsp. all-purpose flour
1 tsp. salt
1/4 c. chopped onions
1 1/2 c. milk
1/2 stick butter

Peel and thinly slice potatoes; arrange in 3 quart glass casserole dish (use a deep bowl, tends to boil over). Sprinkle on flour, salt and onion. Pour milk over all. Pat with butter. Cover with lid or plastic wrap. Microwave on high for 10 minutes. Stir, recover and continue cooking on high for 10 minutes or until tender.