Hungarian Hazelnut Torte

"Hungarian flourless hazelnut cake with buttercream filling. This is a fantastically nice cake that incidentally happens to be flourless, just so, and anyone will completely love it, gluten-shy or not. Unless you have a nut allergy. INGREDIENTS For the cake: 340g hazelnuts, toasted with skin on, 6 egg yolks, 125g caster sugar, 2 tsp baking powder, 6 egg whites For the buttercream: 100g butter, softened, 180g icing sugar, juice of ½ lemon, 50g ground blanched hazelnuts, walnuts or almonds, a few tablespoons of apricot jam, chocolate whirls or coarsely grated dark chocolate, to garnish"

Preparation Time1 hr

Cooking Time1 hr 10 min