Take gold in cake-baking with this stunning re-creation of the velodrome in cake - cycling fans will be delighted. Thoroughly grease and line the base of a 24cm/10in savarin tin. Preheat the oven ...

Line a 20cm cake tin with baking parchment ... Blend the olive oil and nigella seeds together in a blender to create a black oily paste. Add this to the flour mix and stir in.