Prepare the dough: break the egg into a deep bowl, add sugar, baking powder, milk. Beat until the mixture becomes homogeneous and the sugar dissolves.
Add flour and cocoa. Mix until smooth and lump-free.
Heat a frying pan with vegetable oil. Put 2 tbsp of dough (=1 pancake) and fry for 2-3 minutes on each side. Do this with all the dough.