Place the flour, potato starch, sugar and cocoa powder in a bowl and lightly beat with an electric mixture. This will break up lumps and does the same thing as sifting the ingredients. Gradually add the milk, mixing with each addition. Then add the vanilla extract and red food colouring mix well until the batter is smooth.
Set a lightly greased frying pan to medium heat and pour in enough batter to cover the bottom of the pan. Bring the heat down to low and place a lid on the pan. Cook the crepe until the surface is fully cooked.
Gently loosen the edges of the crepe from the pan using a chopstick, then flip the crepe out onto a plate. Continue with the remaining batter – you should be able to make about 15 crepes. Allow the crepes to fully cool. Using a plate as a guide, cut the crepes into clean circles