Walnut Cake

Ingredients:
360g walnuts
1 tbsp flour
1/2 tsp baking powder
8 eggs, separated
1 cup sugar, dividedZest of 1 orange

Lightly butter and line a 25cm springform pan.
Heat oven to 180°C
Grind walnuts in food processor until fine.
Set aside two tablespoons.
Combine remaining walnut with flour and baking powder.

Beat egg yolks until well-blended, then gradually beat in half-cup sugar.
Continue beating until mixture is light and lemon-coloured and the eggs form a ribbon when dropped from a spoon.
Stir in orange zest and flour mixture.
Beat egg whites until soft peaks form.

Gradually beat in remaining half-cup sugar until stiff peaks form.
Fold a large spoonful of beaten egg whites into egg mixture to lighten it, then gently fold in remaining egg whites.
Spoon batter into prepared pan.
Sprinkle reserved 2 tablespoons walnute over the top.
Bake 40 to 50 minutes, until puffed and golden.
Remove to wire rack to cool.