Place the flour in a basin and make a well in the centre. Add the egg
Pesto and half the milk
Whisk together and thin to a dropping consistency with the remaining milk. Season.
Wipe the simmering end of the hotplate with a little oil on a piece of kitchen paper. Drop tablespoons of the mixture onto the hotplate
When bubbles rise to the surface
Turn over and cook the other side. Leave to cool in a clean tea-towel.
Place the pancakes on a serving plate
Top each pancake with a spoon of sour cream and a roll of smoked salmon. Garnish with the lemon and chopped parsley or dill.