Polish chocolate & walnut cake
This deliciously delicate chocolate layer cake is a truly showstopping bake. Stack up chocolate sponge, chocolate glaze and crunchy walnuts
Preheat the oven to 200C/fan 180C/gas 6. Butter a 22cm cake tin, line the bottom with baking parchment. Put a third of the frozen blueberries aside, sprinkle the rest with flour, set aside (do not defrost).
In a large bowl, beat the sugar and eggs until smooth, add the vegetable oil, lemon zest and juice and yogurt. Combine the wet ingredients with the flour, baking powder and a pinch of salt using a whisk. Don’t worry if a few lumps remain. Add the blueberries mixed with flour.
Pour the cake mixture into the prepared tin. Sprinkle the remaining berries on top. Put the tin in the oven, reduce the temperature to 180C/fan 160C/gas 4. Bake for 1 hr 10 mins-1hr 20 mins or until a skewer inserted into the cake comes out clean. Remove from oven and set aside to cool. After removing from the baking tin, sprinkle the cake with icing sugar, if you like.