Step 1

In a small bowl, combine rub ingredients: chili powder, brown sugar salt, pepper, garlic powder, and onion powder.

Step 2

Remove thin translucent membrane from the back side of the ribs. Use a knife or fork to carefully loosen it on one end, and then grip it with a paper towel and just peel it right off.

Step 3

Rub or brush meat with mustard (feel free to use your hands). When meat is coated with mustard, sprinkle with spice mixture and rub in lightly so the rub adheres to the meat.

Step 4

Place ribs into slow cooker and coat with 1 1/2 cups of barbecue sauce.

Step 5

Cook on high for 4-5 hours or low for 8-10 hours.

Step 6

When ribs are cooked, line a baking sheet with foil and preheat broiler to high. Carefully place ribs on prepared baking sheet. Brush top with remaining barbecue sauce and broil for 3-4 minutes or until bubbling and caramelized.

Step 7

Serve immediately.