Purple sweet potatoes are quite unusual, but easy to find. Very sweet, like all sweet potatoes these are loaded with vitamins, and have a lower sugar rush than conventional white potatoes. They can be used in savoury dishes, but due to their pretty hue are more often used in desserts, ice-cream or baking.
Roast Purple Sweet Potato & Cauliflower Soup (Rebel Recipes) is an easy recipe. First you roast the veggies, then some of the sweet potatoes are sliced to make crisps, and top the soup with this and more roasted cauliflower.
Purple Sweet Potato Cheesecake Bars (Crowded Kitchen) make a nice alternative to sweet potato pie at Thanksgiving. These are gluten-free too. The crushed cinnamon cookie base is combined with pecans, cashew butter, vanilla, maple syrup and sea salt, then topped with a blend of potatoes and soaked cashews.
This Purple Sweet Potato Ice Cream (Nosh and Nourish) is made with coconut milk and sweetened with maple syrup. Then adds a pretty delicious blackberry swirl.
Purple Sweet Potato Frosting (Detoxinista) is made with plant milk and coconut oil, sweetened with maple syrup. You can use the same recipe with orange sweet potatoes, to make an orange cake frosting.