The great thing about Royal Icing is that it dries hard and you can layer it and make cookies that are almost too pretty to eat! First let’s go thru a few things to note about Royal Icing.
Most commonly used on sugar cookies, royal icing dries hard and you can create details and script on your cookies. You can also use this to pipe details to use on a cake after it hardens (flowers, scrollwork and small piping details).
Royal Icing takes a MINIMUM 6 – 8 hours to harden completely. I suggest planning to be able to leave it 12 hours from your last layer of details. Typically I will leave 1-2 hours between layers. Don’t worry about the sugar cookies going stale, due to the high sugar content they can be out for 24 hours easily.
Piping with Royal Icing takes PRACTICE. and lots of it! The first cookies you decorate won’t look like the ones you saw on Instagram or Pinterest. Probably not on your 5th try either, but if you stick with it, like most things, they will improve!
To make a basic batch of icing you need warm water, meringue powder and icing sugar. Some recipes call for vanilla and/or corn syrup but they are not necessary. Vanilla can change the colour and flavour of the icing and corn syrup is typically used to add a shine to the icing. If a recipe calls for egg whites vs. meringue powder it is simply because meringue powder is a dried alternative but will give similar results. I personally find the meringue powder easier to work with.
A lot of cookie decorators swear by using 2-3 different consistencies per colour. A thicker consistency for the outline, a thinner for flooding and one somewhere in between for details. While I will suggest mixing the colour you want prior to changing consistencies so that they are all identical, if you are just beginning you can start with a medium consistency of icing you just need to work quickly when decorating.
Due to the high sugar content this icing can be good for weeks (or longer in the freezer!). In an airtight container I suggest storing in the fridge for up to a month and a 2-3 months in the freezer. I leave mine in the fridge and then take it out about an hour before use. If it is already in a piping bag then I will massage the bag incase of any separation. If it is a larger amount in a container then I either stir it with a spoon until combined or toss it in a mixer bowl and remix for 2 minutes.
You can tint Royal Icing to be any colour that you want! Be careful not to add too much colour or it can alter the taste of the icing (especially red!). If you are dividing up a batch of Royal Icing to make multiple colours make sure to cover the icing while tinting as it dries really fast! I’ll include some photos below.
Even the smallest amount of oils or grease in a bowl can break down the consistency of royal icing. I always re-clean my bowl and tools prior to making icing just incase.
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