Marble cake

 
200g dark chocolate
150g white chocolate
200 g butter at room temperature
200g sugar
4 eggs
170 g flour
150 ml cream (I have not had, took the cream - 150 ml (15%)
1 tsp baking powder (in the recipe was not, I habitually added)
Zest of 1 orange
Melt separately dark and white chocolate in a water bath.
Beat butter with sugar, eggs one at a time to enter, whisking well massu.Dobavit cream, and then the flour with baking powder. In 2/3 of the dough add dark chocolate, the rest - white and orange zest. Form (20/20 cm) was covered baking paper, pour a large part of the test with dark chocolate on top - a lot of white chocolate, the last layer - with dark chocolate. Do drawing with the splinter (I "paint" back of a spoon). Bake the cake at 180 g in the preheated oven for about 40 minutes. If you want to get the marble Brown - 25 minutes Enjoy your tea)