Dark chocolate mousses with ganache

Dark chocolate (38%) (cocoa mass, sugar, cocoa butter, emulsifier (soya lecithin), natural flavouring), pasteurised egg white, whipping cream (milk), salted butter (butter (milk), salt)), whole milk, pasteurised egg yolk, milk chocolate (3%) (sugar, cocoa butter, whole milk powder, cocoa mass, emulsifier (soya lecithin), natural flavouring), sugar, glucose syrup, stabilisers (guar gum, xanthan gum), preservative (potassium sorbate), water, acidity regulator (citric acid), fat reduced cocoa powder.