Ingredients
- 175g butter, plus extra for greasing
- 500g plums
- 175g light muscovado sugar
- 175g self-raising flour
- 175g ground hazelnuts
- 3 eggs
- 1 tsp baking powder
- 50g dark chocolate (70 per cent cocoa), chopped
- 2 tbsp hazelnuts
- 2 tbsp redcurrant, damson or plum jelly