Barbecue Baked Beans

1 1/2 cups onions , finely chopped

3 garlic cloves , crushed

1 tablespoon fresh gingerroot, grated

2 (15 ounce) cans great northern beans , drained and rinsed (15 ounces per can)

1/4 cup dark brown sugar , firmly packed

1/4 cup molasses (not blackstrap molasses)

1/4 cup barbecue sauce (i use "k.c. masterpiece original")

1/4 cup ketchup

2 tablespoons Worcestershire sauce

1 tablespoon mustard powder (I use Coleman's English mustard powder)

1 tablespoon plain prepared yellow mustard

1 tablespoon cider vinegar

1 teaspoon liquid smoke