This simple sugar cookie icing mixes in minutes, pipes smoothly, and dries with a light, glossy sheen. It’s perfect for holiday decorating.

Sugar Cookie Icing on cookies

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Holly’s Recipe Highlights

  • Flavor: Sweet and smooth with a light vanilla flavor.
  • Recommended Tools: A piping bag and a #2 cake decorating tip help to make neat outlines, but zip-top bags work in a pinch.
  • Yield: This recipe makes enough to ice about 48 medium cookies, depending on your decorating style.
  • Freezing: Decorated cookies freeze well once the icing has fully hardened.

Ingredient Notes

  • Powdered Sugar: Also called icing sugar or confectioners’ sugar, creates a smooth, glossy finish; sift it for the best texture.
  • Vanilla Extract: Clear vanilla extract keeps icing bright white; regular vanilla adds flavor but will tint the icing slightly. Swap it for almond or peppermint extract for a holiday flavor, or use lemon for a fresh twist.
  • Light Corn Syrup: Adds shine and helps the icing harden while still having a soft bite.
  • Milk: Use whole milk, non-dairy milk, or skim milk. If using non-dairy milk, like almond milk, the icing will not be bright white.
  • Gel Food Coloring: Blends smoothly without thinning the icing; just remember, a little goes a long way.

How to Make Icing For Sugar Cookies

  1. Mix all ingredients until smooth (full recipe below).
  2. Adjust the thickness as needed and color with food coloring.

Add seasonal sprinkles or crushed candy canes to add some fun to your cookie decorating

To Ice Cookies:

I usually stick to one icing, but if you want, make one for outlining (thicker) and one for flooding (thinner) by adding milk little by little, and follow the steps below:

  1. Fill a piping bag with the thicker icing and outline each cookie.
  2. Once the cookie outlines have set for about 10 minutes, ‘flood’ the inner section of the cookies with thinner icing.
  3. Top with sprinkles, crushed candy canes, or a variety of fun toppings!
red , green and white Sugar Cookie Icing on cookies with sprinkles

Holly’s Tips for Perfect Cookies

  • Add the milk slowly (in drops) when getting the right consistency, as it changes quickly!
  • The flood consistency icing should flow easily but stay inside the border, so don’t make it too runny. Try outlining and flooding a test cookie, then adjust the consistencies as needed.
  • Any food coloring can be used, but gel food coloring will give you the most vibrant colors. For deeper colors, mix the food coloring in slowly to minimize the air in your icing and let it sit for an hour or overnight so the color can fully develop.
  • When my kids were small, it was so much fun to fill several piping bags or icing bottles with different colors of icing, put out little pots of sprinkles, and let them decorate. Sometimes the most perfect cookies aren’t “perfect” at all.

Storing Your Iced Cookies

Icing: Store leftovers in an airtight container in the fridge for up to 4 days. Rewhisk before using and adjust consistency with a drop of milk if needed.

Cookies: Decorated cookies should dry completely before storing between layers of parchment. Once set, they keep at room temperature for up to 4 days or freeze for up to 3 months. Add them to a Christmas cookie platter along with soft sugar cookies, shortbread cookies, old-fashioned butter cookies, and gingerbread cookies!

More Delicious Holiday Baking

Did you love this Sugar Cookie Icing? Leave a rating and a comment below!

image of Everyday Comfort cookbook by Holly Nilsson of Spend With Pennies plus text
perfect Sugar Cookie Icing on cookies
4.95 from 269 votes

Sugar Cookie Icing

Servings 48 cookies iced
This smooth vanilla icing is ideal for outlining and flooding your favorite sugar cookies.
Servings 48 cookies iced
Prep Time 10 minutes
Total Time 10 minutes
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Ingredients  

  • cups powdered sugar
  • tablespoons light corn syrup
  • 1 teaspoon vanilla extract clear
  • 2 tablespoons milk up to 3, as needed
  • food coloring gel is best

Instructions 

  • With a hand mixer, beat powdered sugar, corn syrup, vanilla, and 1 tablespoon milk in a small bowl until smooth.
  • Add milk a few drops at a time to reach desired consistency.
  • Stir in food coloring to reach desired color. Decorate cookies and allow icing to set.

Notes

*Number of cookies iced will depend on size and amount of icing used on each cookie.
Consistency of the Icing:
If you’ve watched cookie decorating videos you’ll usually see both:
  • thick icing (peanut butter consistency) used to outline the shape
  • thinner icing to fill the inside (more like a gravy consistency)
If you’re making fancy cookies, you’ll want both consistencies. If it’s too thick, add a little more milk (½ teaspoon at a time, it doesn’t take much). If it’s too runny, add a little more powdered sugar.
You can test one cookie to make sure it doesn’t run off the edges and holds it shape well enough.
To Ice Cookies:
  • Use a piping bag with a #2 cake decorating tip and outline sugar cookies.
  • Once the cookie outline has set for about 10 minutes, then you can ‘flood’ the inner section of the cookie with the same or another color.
  • Top with sprinkles, crushed candy canes, or a variety of fun toppings!
  • If you are new to piping with icing, practice your ‘drawing’ on a piece of parchment paper until you get the hang of it. Instant sugar art!
4.95 from 269 votes

Nutrition Information

Calories: 27 | Carbohydrates: 7g | Protein: 0.02g | Fat: 0.01g | Saturated Fat: 0.004g | Monounsaturated Fat: 0.001g | Cholesterol: 0.03mg | Sodium: 1mg | Potassium: 1mg | Sugar: 7g | Vitamin A: 1IU | Calcium: 1mg | Iron: 0.004mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Cookies, Dessert
Cuisine American

Recipe slightly adapted from food.com

closeup of sugar cookie icing in red and green on Christmas cookie cutouts, with writing
Closeup of a sugar cookie cutout with sugar cookie icing and sprinkles, with writing
Sugar Cookie Icing on sugar cookies with a title
Sugar Cookie Icing on sugar cookies and close up photo with a title

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About the author

Holly Nilsson is the creator of Spend With Pennies, where she creates easy, comforting recipes made for real life. She is also the author of “Everyday Comfort,” which promises to inspire even more hearty, home-cooked meals.
See more posts by Holly

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4.95 from 269 votes (245 ratings without comment)

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Comments

    1. Hi Bexky, to see the full list of ingredients with amounts you need to scroll to the bottom to the recipe. You can also click “jump to recipe” at the top of each page. I hope this helps!

      1. Hi,
        I was wondering what kind of milk you used? I typically drink Almond Milk, so I wasn’t sure if this would throw off flavor/consistency.

      2. Hi Lucy, I use whatever milk I have on hand which is often 2% milk. You can use almond milk but it will change the flavor of the icing. If you try it I would love to hear how it turns out!

    1. Yes, you can. Just be sure to store it in an airtight container. Depending on how long you are storing it before using it, you may need to put it in the fridge. Just bring it out and let it return to room temperature before using as it will be quite thick straight from the fridge.

  1. I made this recipe hoping to find an alternative to royal icing. It did NOT dry hard. It was firm enough to decorate on top of, but not to stack/store the cookies. It’s been 3 days and you can still leave a finger print/indentation in the frosting.2 stars

    1. Hi Sue, I use this recipe often for my sugar cookies and while it does not get as hard as royal icing it does get hard enough to stack. To help it harden I would add closer to the 2 tablespoons of milk instead of 3. Hope that helps.

  2. Tastes just like buttercream, is just as easy to make, but is much easier to pipe – and it gets hard enough for cookie decorations. Another keeper from Spend with Pennies ;-)

    Holly, hopefully you can answer this questions – I am wondering if I could make a few colors, put them in decorating squeeze bottles and store them in the frig between baking sessions with grandson? It would be a really handy way to give him lots of colors to decorate with.

    BTW I really enjoy your blog, real food at a reasonable price.5 stars

    1. Hi Linda, I actually use decorating squeeze bottles too and often have left the icing in the bottle for a few days between icing sessions with no issue. I unscrew the top of my bottles and place plastic wrap over the opening, then screw the lid back on to keep them sealed and prevent drying out. If they do get too thick I add a little milk into the bottle and stir it up to thin it out again. Enjoy decorating with your grandson!

    1. I haven’t tried this recipe with maple syrup but another reader did with good results, Judy. You can use dark corn syrup in this recipe too. It just gives the icing a slightly beige tint so it is not the best if making white icing, which I imagine would happen with maple syrup as well.

    1. Hi Jack, you can definitely freeze this recipe but you may struggle when icing the cookies with defrosted icing to get it nice and smooth. We prefer to ice the cookies first then freeze them for best results.

    1. Hi Susan, I would store this icing in the refrigerator for up to several days. Make sure to let it come to room temperature again before using it to decorate your cookies.

  3. Dear Holly!
    I need to entertain some little ones making Easter cookies next week – can you please tell me approximately how long it takes for this icing to harden and wether or not you think edible ink food marking pens will work well on this icing?
    Thanks so much!
    Joanne5 stars

    1. Hi Jo, it can take up to 24 hours for sugar cookie icing to harden enough. I haven’t tried the food pens on the icing, but think it would work if the icing is fully hardened. Have fun!!

  4. My son is deathly allergic to tree nut products and all the paste did coloring days may be made on material that contained but products. . What you do?

    1. You can use any type of food coloring you would like. More water-based ones may mean adding a bit less milk or more powdered sugar. Hope that helps Peggy.

  5. I thought it was perfect icing for cookies. I am not sure what the comments that say it’s “chalky” are about because I didn’t detect that at all. I made this with Agave syrup (because the corn syrup was one shelf higher and I couldn’t reach it) and it worked perfectly.

    I did see comments that this ruined an entire batch of cookies and one thing I was taught very early on when cooking anything, is to taste everything as you go so you can make changes to suit your taste… and so if you can’t make it work you aren’t wasting cookies/cakes or whatever else by incorporating it. Just a suggestion but great recipe:)5 stars

  6. Dries fast, what I was looking for. However would be much easier to frost with piping and squirt bottle like suggested in thinner consistency. I was in a rush bit know better next time. Goes well with sugar cookies, classic holiday cookie flavor. Can be very sticky when thick.4 stars

  7. I left my cookies to dry overnight and the icing hardened perfectly! Stacked this morning and the icing didn’t transfer at all! Thank you! SWP Employee5 stars

  8. My grandma always made this frosting that you had to boul. It only had confectionery sugar and milk. You had to frost cookies fast before it got hard. But I cant find it anywhere.

    1. My mom did the same and if I recall it was called Seven Minute Frosting. If you do a search you’ll find many recipes. I remember it was pretty stiff on cakes but very good.