We have not tested this recipe in cupcake version, though I would imagine it would be just fine. I would suggest filling the cupcake cavities 2/3 full to allow room for the cupcakes to rise. Bake for around 25 minutes or until a toothpick comes out clean. You can also refer to the back of the cake mix box you are using to see the suggested bake time for cupcakes. Some oven temperatures run hotter than others, and you definitely want to keep the cupcakes nice and moist, not overdone - so keep an eye on them in the oven around the 20 minute mark.