This Thermomix recipe for hazelnut and pear cake is a delicious and elegant dessert that is perfect for fall. The cake is made with ground hazelnuts and almond flour, and is studded with fresh pear slices. The result is a moist and flavorful cake that is both sweet and nutty. Serve it with a dollop of whipped cream or a scoop of vanilla ice cream for a satisfying and comforting dessert.