1. Except butter, chopped pistachios, black chocolate and cocoa powder, the rest of the ingredients are put into the cook machine or bread machine
2. After mixing the dough smoothly, add the softened butter
3. Continue to knead until the glove film comes out
4. After rounding the dough, let it rise in a warm and moist place for about an hour
5. Fermentation is complete
6. After the fermented dough is vented, divide it into three equal parts, round each and let it stand for a quarter
7. When standing, chop the pistachios
8. Then melt the black heat insulation water
9. Take a dough and roll it out into a tongue shape
10. Brush with melted chocolate
11. Sprinkle with chopped pistachios
12. Roll up from top to bottom
13. Put it in the baking tray for secondary fermentation
14. Fermentation is complete
15. Sprinkle a layer of cocoa powder on the surface, oven 175 degrees, 25min
16. Baking is complete
