Here's an easy recipe for "spreadable sweet potato" using sweet potatoes. Simply peel and slice sweet potatoes, boil them in water until soft, mash them, add butter, sugar, and vanilla extract, and mix well. Enjoy it as a topping for toast or ice cream. Store it in a container or jar in the refrigerator for up to 3 days, or wrap it in plastic wrap and freeze it for up to 2 weeks.