My Favourite Chocolate Frosting

Recipe video above. My favourite Chocolate Frosting tastes like the most delicious chocolate mousse you've ever had. It’s beautifully creamy, completely smooth, with a rich chocolate flavour and far less sweet than buttercream. It's essentially a cross between buttercream and chocolate ganache, lightened with the use of cream cheese rather than more butter.Pastry chefs will recognise its crèmeux-like texture, but there's no eggs in this. It's sturdier than whipped cream, so it's a brilliant all-rounder that can be piped into tall swirls on cupcakes or spreading in cake layers without squishing out when cut.Cream cheese is the key ingredient - provides fluffed volume and structure (rather than using excessive amounts of butter), but you won't taste any tang!PS Just to be clear - this is still sweet! It's a frosting, after all :) But it has 70% less sugar than the equivalent volume of buttercream.----------------------Yield - 1.2 kg, 6 cups of frosting. See Note 1 for what this is enough for.