Maple bread and butter pudding with walnut crumble

Name: Maple bread and butter pudding with walnut crumble
Prep time: 25 min
Cook time: 1 h 30 min
Total time: 1 h 30 min
Yield: 6 portions
Ingredients: 300 g wholemeal bread; 60 g butter; 80 g pitted prunes; 60 g walnuts; 3 tsp Rapadura sugar; 1 tsp ground cinnamon; 1 tbsp self-raising flour; 3 eggs; 2 tbsp pure maple syrup; 100 g pouring (whipping) cream; 500 g milk; 1 tsp natural vanilla extract; natural yoghurt