Ingredients

Hazelnut praline paste
Hazelnut 200g
160℃(320℉) for 8 minutes
Sugar 210g
Water 60g

Hazelnut cocoa cake
Baking sheet of 32 cm x 27 cm
6 egg yolks
Sugar 30g
Hazelnut praline paste 60g
Cake flour 50g
Cocoa powder 20g
3 egg whites
Sugar 60g
180°C (356°F) for 12 minutes

Hazelnut chocolate mousse
Milk chocolate 50g
Liquid cream 100g
Gelatin 7.5g
Hazelnut praline paste 90g
Liquid cream 200g

Hazelnut chocolate ganache
Hazelnut praline paste 80g
Dark chocolate 80g
Liquid cream 80g

Gold leaf
Chocolate