Whisk to stiff peaks
Preheat the oven to gas ½, 130°C, fan 110°C. Line 2 large baking trays with nonstick baking paper. Put 1 large egg white in a large, clean non-plastic bowl (plastic bowls can retain grease, which stops the egg white whipping) and beat with an electric whisk, starting on a low speed and slowly increasing to high. Whisk for 3 mins or until stiff peaks form.