Christmas Chocolate Vanilla Yule Log Recipe Bûche de Noël

Vanilla Mousseline Cream Recipe：    • Vanilla Mousseline Cream Recipe 香草慕斯琳奶油食谱 ...   Ingredients Cocoa Sponge Cake 4 egg yolks Cocoa powder 8g 4 egg whites Sugar 80g Cake flour 55g Baking pan of 38cm x 28cm 180°C (356°F) for 14 minutes Cocoa milk Hot milk 100g Cocoa powder 5g Sugar 15g Vanilla mousseline cream 450g Chocolate ganache Dark chocolate (57.9%) 150g Whipping cream (38%) 170g Desiccated coconut + Matcha Meringue cookies Icing sugar