My mom once received a small book with cupcake recipes along with a 6-cup silicone muffin pan as a gift. She made these delicious cupcakes and then shared the recipe with me. There are a lot of sour cream or vanilla cupcakes posted here, but not one is even close to this recipe. It can be made in either a silicone or metal pan. It can also easily be doubled or tripled to make larger batches. For the easy fudge frosting shown, check out recipe #415723 by chef #971177.