Step 2: Making the pastry

If you have your own butter pastry recipe feel free to use it if not here is a simple one.

Butter dough recipe: 

250g             butter (room temperature )
250g             sugar
3 tsp             vanilla sugar
1                    egg yolk
1                    egg
2 spoons     rum   or     backing flavor (rum, butter rum, what you want)

           Stir everything together. 

500g            flour

           Screen the flour on the butter sugar mix while kneading butter-sugar-stuff.

Further you need some spoons of cacao powder to color a part of the pastry.
In case of the the example picture the black and white ratio is roughly 50:50 so color have of the      dough with cacao nicely dark brown. 4 to 5 spoons should make it don't use to much or the dough will get to dry , knead it well the color will adjust.
Now form bowls two bowls, put foile arround it and put the dough at least 4 hours in the fridge.