This is the recipe my dad use to make and I grew up with it is awesome I have given this recipe to tons of friends and family members. I DO NOT do these in a crock pot they get too mushy and watery. I always add the varation to this recipe
Wash beans throughly and put in a 6 quart saucepan. Add enough water to come 2 inches above beans and soak overnight.
Next morning drain, rinse, cover with cold water add the baking soda and bring to a boil. Again drain, rinse cover with cold water and bring to another boil. DO NOT DRAIN this boil.
Put the onion and salt pork in the bottom of a bean pot or deep casserole with all the rest of the seasoning. Add the hot beans and liquid from the last boil of the beans to barely cover Bake in a very slow oven until beans are tender. Add more boiling water as liquid evaporates. Remove cover for the and bake for the last hour.
VARATIONS: If sweeter baked beans are desired add 1/4 Cup more of both brown sugar and molasses along with seasoning. This also gives a richer brown color.