Cook the peas according to the cooking instructions on the pack.
Sift the flour into a bowl.
Stir in the eggs and add the butter, after melting. To melt your butter, microwave it quickly in a cup.
Blend the milk and peas until smooth and place in the mixture.
Strain in a colander and let it stand for 30 minutes.
Melt a little butter in a wide pan and pour in the mixture, cooking on both sides.
Pack with your favourite filling and serve.