Classic Nutella Cake

This incredible Nutella cake is made with chocolate hazelnut cake layers, frosted with Nutella buttercream, and topped with chocolate ganache. Ingredients : 200g flour 150 g of sugar 150g melted butter 3 eggs 1 sachet of baking powder 150 g of Nutella (or more, depending on your preferences!) Preparation : Preheat your oven to  180°C …