Preheat the oven to 250F

Measure out the foil so that it will entirely cover the rack of ribs

Lay the foil over the baking pan so that the middle third is on the pan

Spray the foil with cooking spray

Place the ribs onto the foil with the meat side facing up

Pull the edges of the foil upwards so that the liquid won't spill over the sides

Pour the apple juice or beer over the ribs

Add the mustard, pepper, garlic powder, onion powder, and oregano to the mixing bowl

Combine all the ingredients until everything is mixed together

Sprinkle the spice mixture evenly over the meat

Fold the foil over the meat, sealing the foil as much as possible

Cook the ribs in the preheated oven for three and a half hours

Remove the ribs from the oven

Switch the oven from baking to broiling on low

Allow the broiler to heat for at least 5 minutes

Meanwhile, carefully open the foil over the ribs, taking care to not get burned by the steam

Fold the foil back to make a "wall" along all the sides

Pour the BBQ sauce evently over the ribs

Return the ribs to the oven under the broiler

Broil for five minutes

Remove the ribs from the oven

Allow to stand for 5 minutes before cutting the ribs apart

Serve