Spekkoek

Preheat oven to 160°C. Grease and line a 22 cm springform cake pan. Combine spices in a small bowl and set aside. Beat chopped butter, vanilla and half the sugar in a large bowl with an electric mixer until pale and thick. Add egg yolks in 2 batches, beating to combine, then fold in flour.
In another clean, dry bowl, whisk egg whites to stiff peaks, then gradually add remaining 110 g sugar and beat until glossy. Fold one-third of egg white mixture into egg yolk mixture, then fold in remaining egg whites in 2 batches. Divide between 2 bowls, then add combined spices to one, stirring to combine.
Evenly spread one-sixth (about ½ cup) of spiced cake batter over base of prepared cake pan and bake for 6 minutes or until cooked through. Heat grill to medium-high (the rest of the cake will be cooked under the grill). Brush cake with melted butter, then evenly spread one-sixth (about ½ cup) of the plain batter over cooked spiced layer and cook under the grill for 4 minutes or until cooked through. Repeat, alternating between spiced and plain batters and cooking under the grill, to make 12 layers in total. Cool in pan before removing. Dust with icing sugar and serve with ice-cream.