Durgin Park Boston Baked Beans

2 Ibs. great northern beans, soaked overnight
1 lb. salt pork, diced
1 med. onion, quartered
Hot water
7 T. brown sugar
2/3 c. molasses
2 tsp. dry mustard
4 tsp. salt and pepper

Parboil soaked beans for 5 minutes with 1 teaspoon baking soda, drain and run cold water over them. In bottom of 2 quart bean pot put half the diced salt pork and the onion. Add the beans and the rest of the salt pork. Mix seasonings with enough hot water to cover beans. Bake UNCOVERED at 300á for 6 hours. Check frequently; add water to keep liquid level with top of beans.