I've tried a few recipes for liver cake, but the best has to be 'Nana Sue's' liver cake. I hope Sue doesn't mind me sharing the recipe...
1lb of liver (we like lambs liver)
3 medium eggs
6oz wholemeal flour
Pinch of garlic powder
Blend all the ingredients (best to keep an old blender just for this job), spread onto a baking tray and cook at 200 degrees C for around 20-30 minutes, or until it is cooked through and no longer pink in the middle. Once cool, cut into treat sized pieces.
This will keep in the fridge for about 3 days, and can be frozen.