Cook bacon in a pan. While the bacon is cooking melt butter and stir in brown sugar in a pot over medium heat. Bring to a boil and simmer for about 3 minutes
While the butter is melting, place your over the flame to get a char all around the pepper. About 2 minutes. De-seed and dice.
Stir in tomato sauce, jalapeno, worcestershire sauce, apple cider vinegar, garlic powder, cumin, ground mustard, salt and cayenne pepper. simmer for about 5 minutes.
in a separate pot, pour in pinto beans along with barbecue sauce. stir in about half of the bacon and simmer for about 20 minutes, stirring occasionally.
Pour the beans into a baking dish, and sprinkle about 1/4 cup of brown sugar along with remaining bacon. Optionally add more jalapeno. Back at 375 for 20 minutes covered in tin-foil. Remove the tin foil and bake for another 15 minutes. Let cool and serve.