Southern Baked Beans

Recipe adapted from here

Ingredients
1 large onion, diced
2 bags of dry white beans* soaked or cooked for 1 hour in an instantpot.
3 tablespoons prepared yellow mustard
1/4 cup maple syrup
1/4 cup light brown sugar or molasses
4 tablespoons ketchup or tomato paste
1 tablespoon lemon juice or cider vinegar
1/2 pound bacon strips, cut into 1/2-inch pieces
and or 1 pound of smoked sausage

Directions
Preheat oven to 350 degrees F.
In a Dutch oven, mix onion, beans, mustard, maple syrup, light brown sugar, ketchup, and lemon juice. Top with the bacon pieces. Bake, covered, for 45 to 60 minutes.