Knead 125 g butter in pieces, flour, baking powder, 60 g sugar, salt and egg until smooth. Wrap the dough in foil and chill for about 30 minutes. Coarsely grate the marzipan. Mix with whisky and nuts. Melt 150 g butter.
Stir in crème fraîche, 250 g sugar and vanillin sugar. Bring to the boil briefly. Stir in nut mixture. Roll out the dough on a greased baking tray (approx. 35 x 40 cm) sprinkled with breadcrumbs. Spread nut mixture on top. Bake in the preheated oven (electric cooker: 175 °C / convection oven: 150 °C / gas: level 2) for approx. 30 minutes. Let it cool down. Cut off approx. 2 cm of the cake edge all around. Cut the pastry sheet into approx. 65 strips (2.5 x 8 cm each).
Bake in the preheated oven (electric cooker: 175 °C / convection oven: 150 °C / gas: level 2) for approx. 30 minutes. Let it cool down. Cut off approx. 2 cm of the cake edge all around. Cut the pastry sheet into approx. 65 strips (2.5 x 8 cm each). Melt the glaze on a hot water bath. Decorate nut strips with mocha beans and the icing