Sweet And Sour Onions

Grrrrrgh!
Course : Casseroles
From: HungryMonster.com
Serves: 4-6
 

Ingredients:

4 large onion -- sliced
1/4 cup cider vinegar
1/4 cup butter -- melted =or=-
1/4 cup margarine -- melted
1/4 cup boiling water
1/4 cup sugar
 

Preparation:

Slice the onions and arrange in a 1 quart baking dish. Mix the rest of the ingredients and pour over the onions. Bake at 300 degrees for 1 hour.