Tip: click step to get into cook mode
Heat oven to 350 degrees.
Cut bacon into strips & fry with onion over medium heat in a skillet. The goal is not crispy bacon here, but you do want the onion cooked down.
While cooking bacon combine the brown sugar, ketchup, mustard, salt, and pepper in a 9x9 baking dish. Once mixed, stir in drained beans.
Strain fat from bacon & onions and mix into beans.
Bake for 1-2 hours depending on how thick you want the sauce. Will finish a lighter color.
Note : 1 individual yellow mustard packet per can of beans is perfect
Note : Nana's recipe was very 'you'll know when you'll know' with measurements