Baked Bean Casserole

Directions

1. 1
   In a large skillet heat oil.
2. 2
   Cook chopped onion in oil until golden brown.
3. 3
   Add brown sugar, molasses, dry mustard powder, ketchup and cider vinegar.
4. 4
   Cook over low heat until bubbly and mixture is thickened.
5. 5
   Put beans in a 2 quart casserole dish that has been sprayed with cooking spray.
6. 6
   Add onion mixture and stir together.
7. 7
   Bake at 325 degrees for 1 hour or until mixture is bubbly.