Silver Almond Cake

• 6 egg whites
• 175 g / 6 oz caster sugar

Whisk the egg whites until stiff, sprinkle one third of the caster sugar over the top and whisk again until really stiff.

Use the same beater to cream the butter with the rest of the sugar until light and fluffy. Mix in the almond essence. Use a tablespoon to fold in one quarter of the egg w