For the apple purée apples brown sugar cinnamon grated nutmeg juice of a small lemon For the Cake all purpose flour soft light brown sugar ground almonds baking powder cinnamon bicarbonate of soda salt cloves apple purée vegetable oil eggs Mascarpone frosting mascarpone icing sugar double cream vanilla extract ground cinnamon freshly grated nutmeg Toffee sauce unsalted butter brown sugar vanilla paste or extract salt heavy cream nuts to decorate optional