Coffee Roll Cake

• 3 eggs, separated
• 50 g (1¾ oz) sugar
• 50

Line a 27 cm (10¾ in) square baking tin or tray with baking paper and preheat the oven to 180°C (350°F). Using an electric mixer, beat the egg yolks and ٤٠ g (١½ oz) of the sugar on medium speed until pale and light. Sift in half of the flour and fold in using a spatula. Dissolve the c