Preheat propane oven to 275⁰ F
While oven is heating, using a small bowl combine the brown sugar and spices, and whisk to blend seasoning mixture
Trim ribs and remove membrane as needed
Apply dry rub on the ribs and set aside for about five minutes allowing the seasoning to sweat and soak into the meat
On your propane grill, use high heat to sear each side of ribs for 3-5 minutes to desired level of charring
Once desired level of char is achieved, remove ribs from propane grill and place on foil lined baking sheet.
Coat each side of the ribs generously with your favorite BBQ sauce and wrap in foil
Place ribs into your propane oven and bake with meat side down for approximately 2-2.5 hours until desired tenderness and internal temp reaches 165-195⁰ F