Well I found the recipe on another website:
Take a 12" x 24" pine board. marinate the board in Wostishire sauce, dales, and beer. (any brand will do but Sclits is the prefered brand for possum conisours) Drill several holes in pine board and stuff with mushrooms, bell peppers, unions, 3 cloves of garlic and let ingredients sit overnight in refrigerator. Prepare one possum, (fresh is desired but road kill will work as well)by skinning and gutting the possum. Place onto pine board and roast for 10-12 hours or until possum is black and crispy. now take possum off board and throw the carcus away and slice the pine board it to 4" x 4" squares and serve as a desert entre with your favorite meal.