Start by preheating the oven at 180C/350F or Gas mark 4.
Place a pot containing water over medium/low heat and allow it to simmer over which place a glass bowl in which we will be mixing the eggs, sugar, vanilla and a pinch of salt using a free standing electric mixer. Mix for about 4 minutes until the eggs are nice and frothy.
Remove this from the heat, place on a towel on desktop and using a spatula slowly fold in the flour.
Grease lightly a 24 hole muffin tray and spoon in the batter - again 1 or 2 tbsp depending on how big/small this is but the batter should be no thicker than 3-4mm.
Bake for 10-12 min.
Remove from the oven, set aside for a few minutes and then take one by one out and place on a wire rack.