First beat the egg whites, then add the sugar gradually.
Beat the egg whites until the sugar is completely dissolved.
Test with your fingers to check that the mixture is smooth.
Then add: 2 spoons [?], 1 spoon white vinegar, 1-1.5 spoon vanilla.
Mix at low speed with the mixer.
Spread onto a tray greased with oil and lined with baking paper.
Sprinkle finely chopped almonds on top.
Bake at a low temperature, 150°C, for about 20 minutes.
Once it has risen, take it out onto a wire rack to cool.