*To make sweet potato puree, preheat oven to 425 degrees F. Place one medium to large sweet potato on a sheet pan lined with aluminum foil. Poke a few holes in the potato with a fork. Bake for 45-60 minutes, until tender and you can easily slice with a knife. Let cool and peel off the skin. Mash with a fork and measure out 1/2 cup for this recipe. Save any remaining for another recipe or to eat with some salt and pepper.