Prepare the pan. Butter the pan and coat with flour evenly. Remove excess flour.
In a stand mixer add eggs, milk, butter and dry mix, Pumpkin Spice, Bourbon and vanilla. Mix on medium for about 2 minutes, do not overmix. Fold in walnuts and apples.
Pour on prepared mold and bake on a preheated oven at 350 degrees for 45 minutes or until a toothpick comes out clean.
Rest for 15 minutes, unmold and sprinkled with powdered sugar.