Royal Icing Recipe for Decorating Cookies

Posted: September 25, 2025 Last modified: October 8, 2025
Royal Icing Recipe for Decorating Cookies

Royal icing makes your cookies so much more cheerful and appealing. The best part? You only need a few simple ingredients to make it!

Why I Love Making Royal Icing

Baking cookies is always fun right? But making them look extra pretty with this easy royal icing recipe is even more fun.

You can keep it simple or go for really intricate designs. The choice is yours. This recipe is easy to make and can even be used to build and decorate gingerbread houses.

Recipe Ingredients

  • confectioners’ sugar – also known as icing sugar or powdered sugar
  • water – you can also use something like lemon juice to give your icing a flavor other than sugar
  • egg white powder – you can replace the egg white powder with meringue powder but the ratio might be slightly different. Check below for more details on that.
Royal Icing-1

How To Make Royal Icing

Making royal icing is quite easy. You just add all the ingredients to the bowl of a food processor or mixer and on low speed mix it together.

With this recipe you will get a thick consistency that will hold up well for making outlines on your cookies.

If you want something a bit thinner to fill in the lines, you simply add more water to the mixture. Do this a little bit at a time to get the right consistency.

Difference Egg White Powder vs Meringue Powder

They’re very similar, but not quite the same:

  • Egg white powder is simply dehydrated egg whites. When rehydrated with water, it behaves like fresh egg whites. I always use egg white powder for my royal icing.
  • Meringue powder usually contains dried egg whites plus other ingredients such as sugar, cornstarch, stabilizers, and sometimes flavorings or acids. It’s designed specifically for making meringues and icings more stable and shelf-stable.

In most royal icing recipes, you can substitute meringue powder for egg white powder. Just keep in mind that the ratio may differ slightly depending on the brand.

For example, Wilton recommends about 4 teaspoons of meringue powder + 4 teaspoons of water to equal 1 egg white.

Because meringue powder has added sugar/starch, the texture may be a little different compared to pure egg white powder.

Laura Kieft   I

Which Piping Tips

If you’re going to decorate cookies with royal icing, you’ll need piping tips. In the photo above I used Wilton tips #1 and #3. Since I often get questions about which tips I use, here’s a quick overview of my favorites:

  • Wilton #2: for outlining and filling cookies
  • Wilton #1: for fine lines or writing (not suitable for thick icing)
  • Wilton #3: for filling in larger areas more quickly
  • Wilton #129: for drop flowers (only with thick icing)
  • PME ST51: for piping leaves
  • Wilton #102: for ruffled edges

Of course, there are many more tips you can try, but these are the ones I reach for most often when decorating cookies. If you’re looking for an easy recipe for cookies that are perfect for decorating, try my sugar cookies or these chocolate sugar cookies.

Royal Icing Without Egg White Powder

A common question I get: Can I make royal icing without egg white powder? Usually, this comes up because egg white powder isn’t always available in supermarkets or grocery stores. You can, however, easily buy it online or at specialty cooking shops.

Technically, you can replace it with fresh egg whites – but I don’t recommend using raw egg whites because of the risk of salmonella. These days, pasteurized egg whites are widely available in grocery stores, and that’s a great option.

For reference: the amount of egg white powder in the recipe below is equal to about 2 egg whites. If you’re using actual egg whites, you’ll need little to no extra water (since 10 g/0.35 oz egg white powder + 60 ml/4 tbsp liquid = about 2 egg whites).

FAQ Royal Icing

Can I make royal icing without egg white powder?

Yes! You can replace the egg white powder with pasteurized egg whites (about 2 egg whites for this recipe). Avoid raw egg whites because of the risk of salmonella.

Is meringue powder the same as egg white powder?

Not exactly. Egg white powder is pure dried egg whites, while meringue powder also contains sugar, cornstarch, and stabilizers. You can substitute meringue powder, but check the package for conversion ratios.

How do I know if my icing has the right consistency?

Do the “spoon test”: let a spoonful of icing fall back into the bowl. If the surface smooths out in about 10 seconds, it’s “10-second icing.” Around 20 seconds means “20-second icing,” which is great for both outlining and flooding. It takes some practice to learn what you prefer.

How can I color royal icing?

Use gel or paste food coloring – these give vibrant colors without thinning the icing (too much). Add a little at a time until you reach the shade you want. Keep in mind that some colors will get more intense after you let it rest for a while.

How long does royal icing last?

Royal icing keeps for up to 1 week in an airtight container at room temperature. Stir before using, as it may separate a little. If you use fresh egg whites, store the icing in the fridge.

Can I freeze royal icing?

Yes, you can freeze royal icing for up to 3 months. Store in an airtight container or piping bags. Thaw in the fridge overnight and stir well before using.

My icing is too runny - what can I do?

Add more powdered sugar, a little at a time, until you reach the right thickness.

My icing is too stiff - how do I fix it?

Mix in a few drops of water at a time until it loosens to the desired consistency.

 

Royal Icing recipe

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Royal Icing Recipe

This royal icing recipe is perfect for making all sorts of different icings. Add color, make it thinner or thicker easily.
Prep Time5 minutes
Cook Time5 minutes
Total Time10 minutes
Servings: 1 batch

Ingredients 

  • 400 grams powdered sugar
  • 60 ml water
  • 10 grams egg white powder

Equipment

  • piping bag
  • Wilton tip #2

Instructions

Before you begin

  • With these quantities, you’ll get a thick royal icing, perfect for outlining cookies and making shapes that need to hold their form.

Making the icing

  • Place all the ingredients in a mixing bowl and beat until smooth.

Adjusting consistency

  • For a thinner icing to flood (fill) inside outlines, add a little extra water. To check: scoop up a spoonful of icing and let it fall back into the bowl. If the surface smooths out in about 10 seconds, you have “10-second icing.” If it smooths out in 20 seconds, you have “20-second icing.”
  • I prefer the 20-second version because it works for both outlining and flooding. Since the edges aren’t fully set yet, the outlines blend seamlessly with the filling, leaving no visible borders.
  • In the photo of the cookies, you can see what I mean by the piped outlines – those were done with Wilton tip #2.

Tips

  • Avoid raw egg whites because of salmonella risk.
  • If you’re using two different consistencies of icing: pipe the outlines first, let them dry for a few minutes, then fill in with the thinner icing. I like to put the thinner icing in a small squeeze bottle (like one for salad dressings). Snip the tip a little wider and the icing will flow out easily. You can also spoon icing directly into the outlined areas, but that tends to get messy more quickly.
  • Now your sugar cookies are ready to turn into little works of art!
How to store

You can store the icing outside of the fridge in a piping bag or in an airtight container for about a week. Stir before using again as it might split a little.

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