Chill the nougat for 10-15 minutes. In the meantime, lightly roast the hazelnuts in a pan without fat and let them cool down. Cut nougat into small cubes. Cream soft fat, sugar and vanilla sugar.
Stir in the eggs one by one. Then stir in 2 tablespoons of flour, Baileys and cream. Mix the rest of the flour and baking powder and finally stir in briefly. Spread the dough on a greased baking tray (approx. 32x37 cm) and sprinkle with hazelnuts and nougat.
Bake in the preheated oven (electric oven: 200 °C/ gas: level 3) for about 20 minutes. Sprinkle the cake with hazelnut flakes about 5 minutes before the end of the baking time. Leave to cool on the baking tray and cut into pieces.
Dust with icing sugar and arrange on a plate. Whipped cream tastes good with it. Makes about 20 pieces.