Grease a ring cake tin (approx. 22 cm Ø; approx. 2 1⁄2 contents) and dust with flour. Drain the cherries. Mix fat, sugar, vanilla sugar and 1 pinch of salt until creamy. Stir in eggs one at a time. Mix flour and baking powder and stir in portions
Spread half the dough into the mould. Stir the cherry liqueur into the remaining dough and fold in the cherries. Spread on the light-coloured dough. Pull both doughs spirally with a fork so that a marble pattern is created. Bake in the preheated oven (electric cooker: 175°C/circulating air: 150°C/gas: level 2) for approx. 45 minutes
Allow the ring cake to cool in the mould for about 10 minutes. Then turn out of the mould and let it cool down. Dust with icing sugar