Microwave or bake the sweet potato
Mix flour, baking powder, salt, and sugar in the bowl
Grate the cold butter into dry ingredients
Blend 1 cup sweet potato and milk
Add sweet potato/ milk mixtures to the bowl and mix
Once the ingredients come together flour the counter and knead the dough. Folding it over itself to create flaky layers
Roll or pound or to 1/2 inch thick
Using a biscuit cutter or largemouth cup create biscuit shapes in the dough
Repeat until all the dough is used
Bake on a baking sheet for 12-14 minutes until goldern brown
Brush the tops of the biscuits with melted butter after baking