Meltaway Magic

Have you ever savoured a mint meltaway and wondered why it was such a magical experience? The answer is eutectics. 

A eutectic mixture is one in which the melting point of the mixture is lower than the melting point of its discrete parts. In the confectionary context, this usually refers to a mixture that combines two different fats (cocoa butter and coconut oil), which results in a melting point much lower than that of either cocoa butter or coconut oil. When the combined fat hits the palate, it quickly melts and disperses the flavour. 

Boom! The magical meltaway effect. 

Greweling observes: "The transition from a solid to a liquid state happens so quickly that it is possible to feel the heat being absorbed from the mouth. This is the reason that centers of this description actually leave a cool feeling on the palate as they rapidly melt" (Chocolates and Confections, page 411).

This cooling sensation can be amplified through flavouring, such as mint, which itself has a cooling sensation. I've also made wintergreen meltaways. However, the meltaway technique can also be used with nut pastes.

It's easy enough to make a meltaway from an online recipe like this one (which is based on a recipe in Greweling's book). While it is common to "slab" the meltaway and then cut it into pieces, I prefer to pour the mixture into candy cups and let it crystallize. For me, it's easier for handling and packaging.

These are one of the easiest things you could ever make and are perfect for gifting this time of year.

And, as an added benefit, you can discuss eutectics over a cocktail at your office Christmas party!