Created by muffinlady on June 30, 2012
Step 1: Make white sauce- Melt butter stir in flour salt, pepper and finally milk
Step 2: Place 1/2 of potatoes in greased 2 quart casserole cover with 1/2 sauce 1/2 onions and if making Au-grat-in 1/2 of cheese - repeat.
Step 3: Cover bake 350 for 1 hour. Uncover bake 30 minutes longer.