Finely dice the apricots. Coarsely chop the pistachios. Cream fat, sugar and apricot liqueur with the whisk of the hand mixer. Stir in the eggs one after the other. Mix flour and baking powder and stir in. Halve the dough. Sift the cocoa powder onto one half of the dough and stir in.
Fold apricots and pistachios into the light half of the dough. Pour the dough alternately by the spoonful into a greased, flour-polluted ring cake mould (approx. 1 1/2 litres capacity). Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 70 minutes. Take the cake out of the oven and let it cool down for about 10 minutes. Turn the cake out of the tin and let it cool down completely. Dust with icing sugar