For the sponge cake roulade, mix eggs and sugar until a thick white-yellow mass is formed. Stir in the flour briefly and spread the mixture on a pale lined with baking paper. Bake in the oven at 170 °C for 20-25 minutes and turn out onto a sugared cloth while still warm.
Remove the baking paper, sprinkle the sponge with apricot jam and quickly roll into a sponge roll.