This hazelnut and raspberry cake is a delicious combination of sweet and tart flavors. The nutty taste of hazelnuts is complemented by the juicy sweetness of raspberries, making this cake a perfect dessert for any occasion. To make this cake, you will need hazelnut flour, eggs, sugar, butter, raspberries, and baking powder. Mix all the ingredients together, pour the batter into a cake pan, and bake for 30-35 minutes. Once the cake is cooled, you can top it with whipped cream or a raspberry sauce for an extra burst of flavor.