2 (31oz) cans baked beans
1 onion, sliced thin
½ cup maple syrup
3 tbsp mustard
½ cup brown sugar
2 ½ cup ketchup
1lb bacon, cut into 1" strips
Preheat the oven to 325°
Mix the first 6 ingredients together and place in a large casserole dish. Top with extra syrup and the bacon strips to cover.
Bake for 4 ½ hours.