4-5 T mayonnaise
grated zest of 1 unwaxed lemon
2 fairly large dressed crabs
2 handful watercress, trimmed
Mix the mayo and lemon zest together. Turn the white crabmeat into a bowl and stir in enough of the lemon mayonnaise to bind it.
Spread all of the bread slices with the brown crabmeat. Spread the white crab mixture over half of the slices and add a layer of watercress.
place another slice of bread on each and trim off all the crusts. Cut the sandwiches into fingers.
