Cut the pumpkin into small pieces. You can cook it in the microwave in a covered bowl for 4 minutes at maximum power, or steam it, or boil it until tender.
Place the egg and sugar in a bowl and whisk together.
Add the cooked pumpkin, well mashed with a fork or blended with an immersion blender.
Add the milk, continuing to mix.
Sift in the flour a little at a time to avoid lumps.
Finally, add the baking powder and mix again.
Lightly grease a well-heated pan and pour in a ladle of batter; let it set, flip, and finish cooking.
Repeat with the remaining batter.
Serve as you like: honey, maple syrup, a sprinkle of cinnamon, almonds, or other toppings of your choice.