Raspberry and Blueberry Polenta Cake

Raspberry and Blueberry Polenta Cake Cake 125 gram unsalted butter, softened 225 gram castor sugar 3 large eggs 150 gram plain flour ½  teaspoon baking powder 125 gram fine polenta 60 gram ground almonds 70 gram plain yoghurt Rind of 1 lemon, grated Rind of 1 orange, grated 60 ml squeezed lemon juice Grease and [...]