Set oven to 400F.
Poke a few holes in 2 small, raw sweet potatoes and place them on a baking sheet. Bake in the oven for about 45 minutes or until soft. Once baked, allow them to cool, then chop off the ends and remove the skin. Set aside.
In a bowl, mix together the wet ingredients.
In a larger separate bowl, mix together the dry ingredients.
Add the wet ingredients to the dry ingredients and mix together using a spatula. Fold in the cooled, baked sweet potato and, if desired, chopped pecans.
Lightly spray a muffin pan with nonstick baking spray or olive oil. Evenly divide the batter. Bake in the oven for 20 minutes, or until the top is golden brown and you can easily pierce it with a toothpick and it comes out clean.
Allow them to cool for a few minutes in the tray, then remove them from the molds. Enjoy!