Preheat the oven to 350 degrees Fahrenheit.

In a large pan, cook the bacon until crispy, then drain the bacon slices on a paper towel.

Transfer 2 tablespoons of the bacon drippings into a large mixing bowl. Then dice the bacon and add it to the bowl as well.

Add the onion, BBQ sauce, Guinness, molasses, dijon mustard, brown sugar, Worcestershire sauce, and soy sauce to the bowl. Stir to blend completely.

Add in chipotle chilies and Great Northern beans Stir to blend.

Place the mix into a baking dish, then bake for 1 hour to allow the sauce to thicken.

Remove the baking dish from the heat and allow the baked beans to cull for 5 minutes.

Serve immediately.