1. Brown the ground beef in a skillet. Add the onion, then pour into the bottom of a slow cooker/Crockpot.
2. Mix in brown sugar, barbecue sauce, molasses, and seasonings. Stir well.
3. Add the beans, gently fold to incorporate, and stir in the jalapeño. Scatter half the bacon across the top.
4. Cook on high for 2 ½ hours or low for 4 hours. Top with the remaining bacon and serve.