In a medium sized saucepan, sieve your cocoa and mix it together with your sugar. This will ensure that your sauce will be perfectly smooth and have no cocoa lumps.

Add your cream and butter into the saucepan

Heat your sauce on a medium heat, stirring regularly until the butter is melted and the sugar is fully dissolved. This will take about 1-2 minutes.

Reduce the heat slightly and simmer your sauce, stirring constantly. Continue until your sauce is thick and glossy. It should be about the thickness of golden syrup. This step should take about 3-5 minutes.

Remove the sauce from the heat and mix through your peppermint essence. Set aside to cool making your milkshakes

Set up a station with 4 large, chilled milkshake glasses. Drizzle some of the extra mint chocolate sauce all over the inside of your glasses don’t be too fussy it will look best if it is on the messier side. Make some green colored whipped creaming whipped cream, dice up your aero chocolate and set out any other decorations that you would like to use.

Add your ice cream, milk and chocolate sauce into a large blender.

Blend until your milkshake is a smooth even consistency.

Pour your prepared milkshake into the glasses, avoiding the edges as you pour.

Dollop the whipped cream on top and then sprinkle over a generous helping of your aero chocolate and any other toppings that you like.

Serve immediately.