Baked Beans

1 lb beans
5 cups water
1 onion
1/2 tbsp salt
2 tsp vinegar
1 tbsp brown sugar
1/2 tsp dry mustard
1/4 c molasses
1/2 c ketchup
pepper
1/2 lb bacon

Soak beans overnight in cold water. Simmer the beans in the same water until tender, approximately 1 to 2 hours. Drain.
Preheat oven to 325 degrees F (165 degrees C).
Arrange the beans in a 2 quart bean pot or casserole dish by placing a portion of the beans in the bottom of dish, and layering them with bacon and onion. In a saucepan, combine molasses, vinegar, salt, pepper, dry mustard, ketchup, and brown sugar. Bring the mixture to a boil and pour over beans. Pour in just enough water to cover the beans. Cover the dish with a lid or aluminum foil.
Bake for 3 to 4 hours in the preheated oven, until beans are tender. Remove the lid about halfway through cooking, and add more liquid if necessary to prevent the beans from getting too dry. (can also cook in a crock pot on high for 4 hours.)