1 (5 lb.) bag onions
10 tbsp. butter
10 tbsp. flour
5 c. milk
3 c. Cheddar cheese, grated
1 cylinder Ritz crackers, crushed

Peel and boil onions until tender; drain. Melt butter in large saucepan; add flour and stir until smooth. Cook a while, stirring for a few moments; add milk and stir until sauce thickens. Add cheese and melt and stir. Now, in large casserole dish, alternate layers of onions, cheese sauce and crackers 2 times. Bake 1 hour at 350 degrees covered with tinfoil.