Description Purple sweet potato skins are edible, though some recipes recommend peeling them first. When cooking, purple sweet potatoes will take longer than regular sweet potatoes. You will need to bake them anywhere from 90 minutes to 2 hours at 350 F to make them pleasingly moist. Purple sweet potatoes are wonderful boiled, steamed, or baked alongside regular sweet potatoes. They can be used in many of the same ways you’d use an orange or white potato, and the colorful result puts a fun spin on mashed potatoes, fries, and soups. If you’re going to use this sweet potato in baked goods, you do need to be cautious about recipes that include baking soda. Combining the two ingredients may turn the potato’s flesh green.
