Put the flour and sugar in a large bowl, and make a well in the centre. Pour the egg yolks into the well.
Add the milk gradually to the flour mixture, whisking constantly to make a smooth batter.
With a clean whisk, beat the egg whites until stiff, and fold them gently into the batter.
Heat the oil in a large frying pan over medium high heat, and pour a large ladle of batter into the pan for each pancake. Cook until golden, then turn and cook until golden on the other side, about 1 minute per side. Keep warm; repeat with the remaining pancake batter.
To serve...
Serve with maple syrup, jam, icing sugar, caramel sauce, fruit compote or Nutella®.