Nadiya's quick chocolate mousse has a secret ingredient ... you can pipe the mousse in. Serve with whipped cream if desired, with an extra sprinkling of hazelnuts on top and an optional dusting ...

Take a bowl and add the chilled cream with powdered sugar and vanilla extract and whip it properly until it’s smooth. Now ...

Spoon the mousse into serving glasses or bowls and refrigerate for at least 2 hours to set. Once chilled, top the mousse with the reserved whipped cream. Add chocolate shavings or crushed hazelnuts ...

Whipped cream and egg whites can both be used to make chocolate mousse, but which is the best choice? To find out, we asked an expert chocolatier.