Mash the cooked sweet potato mash with a fork, then mix with the egg.
Add the flour of your choice and the baking powder, then the milk and 1 tsp oil. Stir thoroughly. The batter should be thicker and rougher than a normal pancake batter.
Heat a little oil a heavy-based frying pan and put 3 Tbsps of batter per pancake in the pan. Use the bottom of the spoon to spread it out and to create a 10 cm circular shape. Fry for a couple of minutes, then flip the pancake and fry on the other side for 1-2 minutes until golden brown.
Serve with Greek yogurt or honey/maple syrup.