Low-calorie chocolate fudge brownies

55g of plain flour

5 tbsp of cocoa powder, unsweetened

150g of caster sugar

1 pinch of salt

1 tsp vanilla extract, or 1 tbsp vanilla bean paste

100g of pitted prunes, cooked, drained and puréed

2 eggs

50g of cooked beetroot, not in vinegar, puréed with the prunes