1 lb. dry Northern spy beans or other dry beans
1 lg. onion
1/2 tsp. salt
1 c. molasses
1 tsp. dry mustard
1 tsp. Worcestershire sauce
1 c. firmly packed brown sugar
1/4 lb. bacon

Rinse and pick over beans; place in large kettle. Cover with water and soak overnight. Drain. Place in large kettle. Cover with water, sprinkle with 1 tablespoon baking soda. Bring to boil. Cook covered for 30 minutes or until beans are just tender. Drain; reserve liquid.

Combine salt, molasses, mustard, Worcestershire sauce and brown sugar. Place 1/3 of beans in crock pot with small amount of reserved liquid. Cover with 1/3 of molasses mixture. Place 3 slices of bacon on top. Place onion on top of this layer. Repeat layers; add part of reserved liquid with each layer. Cover beans with liquid. Turn slow cooker on high. After mixture begins to boil. Turn to low and cook 5-6 hours or until beans are tender.