##pecan nuts## roughly chop. Chop chocolate. Melt half in a hot water bath.
Line a baking tray with baking paper. Preheat the oven (electric cooker: 175°C/circulating air: 150°C/gas: level 2). Cream butter, brown sugar, vanilla sugar and 1 pinch of salt with the whisks of the mixer.
Stir in ##eggs## one at a time. Mix flour, cocoa and baking soda, stir in briefly. Stir in the melted chocolate. Fold in the rest of the chopped chocolate and nuts.
Place 6 large blobs of dough (1 heaped tbsp. each) on the baking tray at a large distance, press slightly flat. Bake in the oven for 12-15 minutes.
Remove from the oven and place very carefully on a cake rack. Let it cool down. In the meantime, bake about 18 more cookies from the remaining dough in the same way.