Pat the ribs dry with paper towels. Cut the rack in half or thirds, whatever will make them fit in the slow cooker you own.
1 rack Baby Back Ribs
Remove the "silver skin" membrane from the back of the rack if it is still attached. Grasping it with a paper towel helps you get a good grip on it.
Rub the spice rub on all sides of the ribs.
3-4 Tablespoons Spice Rub
Pour the apple juice, ACV, and liquid smoke into the crock of the slow cooker.
½ cup Apple Juice, ⅓ cup Apple Cider Vinegar (ACV), 1-2 teaspoons Liquid Smoke
Add the ribs to the slow cooker and put the lid on. Cook on High for 3-5 hours, or Low for 6-8 hours. You can turn them halfway through the cooking time, but it's not necessary.
Remove the ribs from the slow cooker and put them on a baking sheet. Slather them with the bbq sauce to taste.
½ - 1 cup Barbecue Sauce
At this point you can put them under the broiler for a few minutes to caramelize the bbq sauce. This step is optional.
Serve hot and enjoy!