Try this Peppermint Toads recipe, or contribute your own.
Standard fondant-centered chocolates rely on invertase to liquefy a sugar center over time, but this old-fashioned confection achieves its pliable interior through a direct boil method. Sugar, corn syrup, cream of tartar, and cream are heated together to precisely 235 degrees Fahrenheit. Reaching this specific thermal threshold drives off excess water while the invert sugars generated by the corn syrup and cream of tartar prevent the sucrose molecules from recrystallizing into a hard, brittle pane. Without that acid from the cream of tartar, the mixture would quickly turn into grainy glass.
Accuracy matters during the boiling stage. Use a digital candy thermometer clipped to the side of the medium saucepan to monitor progress. Once the mixture hits 235 degrees Fahrenheit, remove the pan immediately from the heat source. Allow the syrup to cool slightly before introducing the volatile peppermint oil. Adding essential oils to boiling sugar causes the aromatic compounds to flash off into the air, leaving behind a flat flavor profile. Stirring in the green and brown food gels while the mixture is warm ensures uniform distribution without overworking the mass. Lightly powdering the chocolate moulds with cornstarch creates a microscopic barrier that prevents the sugar paste from adhering permanently to the plastic details. Spoon the mixture into the cavities quickly because the cooling sugar sets rapidly.