Listed cooking time does not include the time it takes to cook the sweet potato. To bake the sweet potato, slice 1 large or 2 small sweet potatoes in half lengthwise and place face down on a baking tray lined with parchment paper or a silicone baking mat. Bake in the oven at 400 degrees until you can easily pierce them with a fork. This should take anywhere from 25-45 minutes depending on how large they are. Once cooked, scoop the flesh out of the skin and proceed with the recipe.