Preheat the oven to 200 °C.
Mix the butter, sugar, vanilla sugar and syrup until fluffy.
Add the dry ingredients.
Roll the mixture into rolls about 1 cm wide. Place them on a baking sheet lined with baking parchment and flatten them slightly.
Glaze with egg and sprinkle nib sugar over the top.
Bake in the oven at for 10-12 minutes. Remove from the oven and allow to cool. Cut into diagonal pieces while the rolls are still slightly warm.
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