With ketchup and bacon. (9/14/2016 add: thanks to Tia in the comments for catching some transcription errors–should be fixed now! Sorry about that!)
From a box sold in Brookfield, Wisconsin.
Soak beans 2 hours. Then cook 1 hour or until tender.
1/2 bottle ketchup
1 Tablespoon vinegar
2 Tablespoons syrup
Salt and pepper
Fry bacon and add fat to sauce.
Bake 1 hour.
Last 1/2 hour add bacon.