Preparation
Roll out the puff pastry to 2,5 mm. Bake between plates (under pressure) until they are almost ready. Remove the upper plate and bake until ready then dry. Measurement: 19 x 4,5 cm.
Vanilla mousse
Use vanilla mousse for the layers and to finish it off.
Chocolate decoration
Heat the chocolate up to 45°C and cool back to 29°C. Smooth it till 2 mm and cut as wished.