175g butter, plus extra for greasing 250g demerara sugar 100ml maple syrup 3 large eggs 250g self-raising flour 2 tsp baking powder 2 tsp mixed spice 250g parsnips, peeled and grated 1 medium eating apple, peeled, cored and grated 50g pecans, roughly chopped zest and juice 1 small orange icing sugar, to serve 250g tub mascarpone 3-4 tbsp maple syrup Want to see what this recipe costs at different supermarkets?