Wash and dry the pumpkin. Cut a piece, remove the fibers and seeds. Peel the skin (place the piece on a cutting board and peel downward with a knife) and grate on a small-hole grater. In a bowl, combine the pumpkin, yogurt, and a few drops of vanilla flavoring. Add the egg and mix thoroughly until well combined.
In another bowl, combine the flour, sweetener, and baking powder. Mix well.
Combine the pumpkin mixture with the dry ingredients. Mix thoroughly until you get a smooth batter without lumps.
Heat a non-stick frying pan over medium heat. Spread small amounts of oil across the pan surface to fry a few pancakes at a time (1 large spoonful of batter per pancake). Fry the pancakes covered until golden brown, about 2-3 minutes per side. Flip to the other side only when the batter sets. Place the finished pancakes on a plate.
Enjoy warm or cold.