Boston Baked Beans
["1 lb. (2 c.) dried marrow, Great Northern or navy beans", "2 qt. water", "1 onion, chopped", "1/4 lb. salt pork", "3/4 c. Grandma's unsulphured molasses", "1 tsp. salt", "1 tsp. dry mustard"]
["Rinse beans in cold water and drain.", "Bring to a boil and boil for two minutes.", "Remove from heat.", "Cover loosely and let stand for 1 hour.", "Return to heat and bring to a boil."]
["beans", "water", "onion", "salt pork", "molasses", "salt", "dry mustard"]