Yes! In fact, I recommend you make this recipe a day prior to Thanksgiving! Doing so will allow the flavors to deepen and get ultra rich. Do everything up until you need to place the yams in the oven. Pour the sauce over the yams and apples, cover with foil and place in the refrigerator. On Thanksgiving day pull it out of the fridge and place in a 350°F preheated oven and bake for 40-45 minutes or until warmed throughout.