Put the flour, yeast and sugar in a bowl and stir together. Whisk the egg and milk together, then gradually whisk into the flour mix to make a batter. Cover with a teatowel and leave for 1½ hours.
Heat a non-stick frying pan and brush with a little oil.
Uncover the batter and whisk in 1 tsp of salt. Working in batches, drop large spoonfuls of batter into the heated pan. Cook for 3-4 mins until small bubbles appear on the surface, then flip and cook the other side for another couple of minutes. Serve with butter or jam and cream.