I am going to my sisters for Thanksgiving and am going to make the Yams. I have never made fresh yams (Always out of a can, Lol!!) Can I boil and peel these yams the night before? What I want to do is cook them, Cut them up and put them in a baking dish to be ready for morning. I will add the brown sugar and butter and all in the morning so it would be just the cooked yams in the fridge overnight. If I do it this way, It won't ruin them will it?