Except for the raspberries or cherries, put everything into a high powered food processor such as a Thermomix and blitz everything until it resembles cake batter. In a Thermomix this was four minutes on speed 6
Pour into a 20cm cake tin that you have greased and lined with greaseproof paper
Dot cherries/raspberries over the top of the mixture
Bake for 30 mins at 150c
Recipe by Mummy Barrow at https://www.mummybarrow.com/kidney-bean-chocolate-cake/