Why Make This Recipe
Sugar cookie icing is the key to making beautiful and tasty decorated cookies. This icing is shiny, easy to work with, and perfect for all kinds of designs and colors. Whether you’re making cookies for a birthday party, holiday, or just for fun, this icing will help you create stunning decorations. Plus, it’s simple enough for kids and beginners to try!
How to Make Best Sugar Cookie Icing
Ingredients
- 3 cups (360 g) powdered sugar, sifted
- 3–4 Tbsp milk or water
- 2 Tbsp light corn syrup
- 1 tsp vanilla extract (or ½ tsp vanilla + ½ tsp almond extract)
- Pinch of fine sea salt
- Gel food coloring, as desired
Directions
- Sift the powdered sugar into a medium bowl.
- Add 3 tablespoons of milk or water, corn syrup, vanilla (and any other extract), and a pinch of salt. Stir until smooth.
- Adjust consistency:
- If too thick, add more liquid ½ teaspoon at a time.
- If too thin, add more powdered sugar.
- For outlining, keep icing on the thicker side; for flooding, thin slightly until a ribbon of icing disappears back into the bowl in about 8-12 seconds.
- Divide icing into bowls and add gel food coloring as desired; stir until evenly colored.
- Transfer icing to piping bags, squeeze bottles, or use small spoons for spreading.
- Decorate completely cooled sugar cookies. Allow icing to dry at room temperature for several hours, or overnight, until the surface is firm.

How to Serve Best Sugar Cookie Icing
Once your cookies are decorated with this icing, they are ready to enjoy! Serve them on a nice plate for parties or gatherings. They are also great as gifts or just a treat for yourself. The icing will make your cookies look beautiful and add a delicious sweetness.
How to Store Best Sugar Cookie Icing
If you have leftover icing, you can store it in an airtight container at room temperature for up to 2 days. If you want to save it longer, you can refrigerate it for up to a week. Before using, bring it back to room temperature and stir it well.
Tips to Make Best Sugar Cookie Icing
- Always sift your powdered sugar for a smoother icing.
- Use gel food coloring for vibrant colors that won’t water down your icing.
- Experiment with different flavors for a unique twist! Almond extract pairs beautifully with vanilla.
- Be patient while icing dries; it helps to create a firm surface that’s perfect for stacking cookies.
Variation
You can use this icing recipe to make royal icing if you want a thicker texture. Just add more powdered sugar to achieve the desired consistency.
FAQs
Can I use regular food coloring instead of gel?
Yes, but gel food coloring is recommended because it doesn’t thin the icing as much as liquid colors do.
Can I freeze sugar cookie icing?
No, it’s best to store it in the fridge and use it fresh, as freezing can change its texture.
How can I make my icing shiny?
Adding corn syrup is what gives it that beautiful shine! Just be sure to mix it well.

Sugar Cookie Icing
Ingredients
Method
- Sift the powdered sugar into a medium bowl.
- Add 3 tablespoons of milk or water, corn syrup, vanilla (and any other extract), and a pinch of salt. Stir until smooth.
- Adjust consistency: If too thick, add more liquid ½ teaspoon at a time. If too thin, add more powdered sugar. For outlining, keep icing on the thicker side; for flooding, thin slightly until a ribbon of icing disappears back into the bowl in about 8-12 seconds.
- Divide icing into bowls and add gel food coloring as desired; stir until evenly colored.
- Transfer icing to piping bags, squeeze bottles, or use small spoons for spreading.
- Decorate completely cooled sugar cookies. Allow icing to dry at room temperature for several hours, or overnight, until the surface is firm.