Peel, cook and mash 1 sweet potato. Set aside 3/4 cup mashed potato.
Preheat oven to 425 degrees. Line a baking sheet with parchment paper.
Place flour in a medium bowl. In a small bowl, whisk together the mashed sweet potato, buttermilk and melted butter. Pour over flour, stirring just until combined.
Drop dough (about 3 tablespoons per biscuit) onto pan, allowing 1 inch between biscuits. Bake until lightly brown, about 12 minutes.
Great with Hiland Butter and Garden Club Pineapple Jam or Strawberry Jam.