essence) or colouring to your marshmallows, now is the time to do so.
Now slowly pour the syrup over the egg whites, whisking continually until the mixture cools and thickens.
Pour the marshmallow out into a large rectangular baking tin, dusted with a mixture of icing sugar and cornflour, and use an oiled palette knife to spread it out evenly. Sift some of the icing sugar and cornflour mix over the top. Leave in a cool place for 4-5 hours, until it’s set.
Tip the marshmallow out onto a sheet of greaseproof paper dusted with the rest of the icing sugar mixture. Cut them into cubes, and coat all the surfaces in the powder mixture.
Paint or pipe on spooky faces with food colouring, or chocolate icing!