Ingredients:
130 g (4.5 oz) butter
3 egg yolks
200 g (7 oz) sugar
250 g (0.5 lb) flour
50 g (1.7 oz) chocolate, melted
6 Tbsp milk
grated zest of 1/2 lemon
1 Tbsp rum
3 egg whites
1/2 tsp baking powder
Preparation:
- Whisk the egg whites until stiff.
- In separate bowl cream butter, egg yolks and sugar together until foamy. Add flour, baking powder, milk, lemon zest and beaten egg whites.
- Pour 1/2 of batter in separate bowl. Stir in melted chocolate. Spoon batters alternately into greased and floured bundt pan. With large spoon, cut and twist through batters to marble.
- Bake at 165 C (330 F) for 30 to 45 minutes or until toothpick inserted into center comes out clean.

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