Step 1

Preheat the oven to 325 degrees F.

Step 2

Add the beans, bacon, and onion to a greased 9x13 casserole dish or 3 quart dutch oven.

Step 3

Combine ketchup, molasses, apple cider vinegar, brown sugar, Worcestershire sauce, salt, dry mustard, and pepper in a large saucepan over medium heat; bring to a boil.

Step 4

Pour sauce over the beans, stir gently. Cover the dish with aluminum foil.

Step 5

Transfer to the preheated oven and bake for about 2 hours, stirring every 1/2 hour or so until desired consistency is reached.(NOTE: The longer you cook the beans, the thicker they'll get. They will also thicken as they cool.)

Step 6

Remove from the oven, stir then let cool for 10 to 15 minutes before serving.