Arrange sliced onion rings on a baking sheet. Place rack of ribs on top of the onion rings. If ribs do not fit, cut into two separate pieces.
Mix water and bourbon together, and pour over the ribs. Sprinkle ribs with garlic powder, onion powder, and chipotle powder.
Completely cover baking sheet with heavy duty aluminum foil, and place in the oven.
Bake for 2 hours, or until meat is tender and starts to fall of the bone.
Carefully remove baking sheet from the oven. Place ribs on a clean baking sheet or large platter, and brush with barbecue sauce.
Option 1 - Place ribs on a preheated barbecue grill to caramelize the sauce and add a smokey flavor.
Option 2 - Place ribs in oven under the broiler to caramelize the sauce.
Cut ribs in between the bones and serve with additional sauce.
Notes
I used my own Bourbon and Brown Sugar Barbecue Sauce for this recipe. If you do not want to make your own sauce, I recommend Guy Fieri's Bourbon Brown Sugar Sauce.