Simple Cookie Icing

Featured in Sweet treats that make you happy.

This icing works for both thick outlines and smooth flooding to help you decorate cookies beautifully and with ease.
Maria from tastyhush
Updated on Fri, 02 May 2025 17:38:08 GMT
A plate of star-shaped cookies with colorful icing details and sprinkles in pink and green shades. Pin it
A plate of star-shaped cookies with colorful icing details and sprinkles in pink and green shades. | tastyhush.com

I've gotta share my top sugar cookie icing method that turns plain cookies into stunning treats. Through many kitchen experiments and tons of practice, I've nailed this glossy, smooth coating that looks fancy but tastes incredible too. It's now what I use for every celebration, holiday, and family gathering.

The Secret To Stunning Icing

What makes this so great is how adaptable it becomes once you get the hang of it. I combine a solid foundation of confectioners' sugar, just the right amount of milk for proper texture, some corn syrup for that gorgeous gloss, and vanilla to make it taste amazing. Your cookies will completely transform once you try this.

What You'll Need

  • Powdered Sugar: 4 cups double-sifted for ultimate smoothness.
  • Milk: 5 tablespoons initially; you can tweak later.
  • Corn Syrup: My hidden trick for that bakery-quality shine.
  • Vanilla Extract: Go with clear for bright white icing; traditional adds depth.
  • Food Coloring: Gel types work best—they won't make your icing runny.

Creating The Magic

Border Creation
Reserve roughly one-third of your mixture, keeping it thicker. This creates the barrier that contains everything.
Ideal Filling Consistency
Gradually mix tiny amounts of milk into the remainder until it moves like warm honey. When drizzled, it should vanish into the bowl within about 8-10 seconds.
Introducing Colors
Stick with gel colorants—they pack more punch and maintain your texture.
A plate of decorated star-shaped cookies in various pastel colors, topped with sparkling icing and edible decorations. Pin it
A plate of decorated star-shaped cookies in various pastel colors, topped with sparkling icing and edible decorations. | tastyhush.com

Decorating Time

This is the fun bit! Get your piping bags ready but don't stuff them—they work better when filled halfway. Begin with the thicker outline mixture, moving carefully around each cookie edge. After that sets slightly, pour your thinner mix into the middle. It'll spread beautifully! Grab a toothpick to help guide the icing into any tricky spots.

Put Your Stamp On It

Now's when you can really play around. Want something minty? Throw in a tiny bit of peppermint flavor. Love zesty tastes? Try adding some lemon. I've even used almond flavoring for special occasion treats. And don't forget colors! My children always jump in to help mix shades—just stick with gels for the brightest results.

Keeping Them Fresh

Here's something important I found out through trial and error: always let your decorated cookies dry completely for 24 hours before you stack them. They'll stay good in an airtight box for about a week—if nobody eats them first! They also freeze really well. I often prepare holiday batches weeks ahead and just take them out when needed.

Why This Never Fails

The reason I'm so attached to this icing is simple: it's totally reliable! It's easy enough for newcomers but can handle fancy patterns too. The texture hits that sweet spot—not too liquid, not too firm. And it dries with this slight glow that makes every cookie look store-bought fancy.

My Insider Tips

From years of cookie decorating, I've learned that you should always add your wet stuff bit by bit—thinning icing is way easier than thickening it. Keep water in a small spray bottle nearby to stop drying while you're working. And my clever trick? Test your piping designs on wax paper first—you can just scoop it back into your bowl!

Exciting Variations To Try

I love playing with different flavors—maybe some almond for fancy cookies or lemon when I want something fresh. My newest trick? Using a bit of honey instead of corn syrup works really well. For special parties, I like to sprinkle some edible sparkles on top while everything's still wet—it looks absolutely amazing!

A plate of star-shaped cookies decorated with colorful icing and sprinkles in shades of blue, pink, and white. Pin it
A plate of star-shaped cookies decorated with colorful icing and sprinkles in shades of blue, pink, and white. | tastyhush.com

Frequently Asked Questions

→ How can I tell if the icing thickness is right?
Outline icing keeps its shape for 3-4 seconds before blending back. Flood icing will spread and melt immediately when poured.
→ Can this be prepared in advance?
Yes, keep it in an airtight container in the fridge. Let it warm up and stir before using. Add milk if the texture feels too thick.
→ Why include corn syrup?
It adds shine and speeds up the icing's drying process. For matte results, replace it with extra milk.
→ When can I stack decorated cookies?
Wait 20-24 hours for the icing to dry completely before stacking your cookies.
→ Can I swap milk with water?
Yes, water works just fine in the same amount. Any kind of milk, including plant-based options, will also work.

Simple Cookie Icing

An easy option for icing that makes both thick outlines and smooth flood styles for decorating cookies. Great for holidays or special events.

Prep Time
15 Minutes
Cook Time
~
Total Time
15 Minutes
By: Maria

Category: Desserts

Difficulty: Intermediate

Cuisine: Sweet Baking

Yield: 24 Servings (1 3/4 cups icing)

Dietary: Vegetarian, Gluten-Free

Ingredients

01 Food coloring, optional
02 1 teaspoon vanilla extract (clear)
03 4 teaspoons light corn syrup
04 5-6 tablespoons (75-90ml) milk
05 4 cups (480g) powdered sugar

Instructions

Step 01

Mix 5 tablespoons milk, vanilla, powdered sugar, and corn syrup together until you get a smooth blend.

Step 02

Slowly add small amounts of milk until the icing takes 3-4 seconds to settle back. Set aside 1/3 of it for outlining.

Step 03

Stir more milk into the leftover icing until it smoothly spreads back in the bowl right away.

Step 04

Mix in food coloring to both types of icings, if you’d like to add color.

Step 05

Use the thicker icing to outline your design, then fill inside with the thinned icing. Smooth out using a toothpick.

Step 06

Leave the cookies untouched for at least 20-24 hours so they completely set before stacking.

Notes

  1. Yields about 1 3/4 cups of icing.
  2. This can be stored in the fridge for later.
  3. Corn syrup adds a glossy finish.

Tools You'll Need

  • Mixing bowl (large)
  • Bags for piping

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy if milk is used.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 85
  • Total Fat: ~
  • Total Carbohydrate: 22 g
  • Protein: ~