Simplest Sugar Cookie Icing That Hardens (Shiny)

Need an easy, back pocket recipe for sugar cookie icing? Learn how to make cookie frosting that hardens into a glossy, shiny glaze coating. This kid-approved recipe uses four simple ingredients (with no meringue powder!), takes five minutes to make, and makes decorating a breeze for all ages.

Unbalanced

% Daily Values based on a 2,000 calorie diet

Step 1

Add the powdered sugar to a medium bowl. Add 6 teaspoons milk, corn syrup, and extract. Stir vigorously until icing is smooth and no lumps remain.

Step 2

If needed, add additional milk to thin icing. Test the desired consistency for spreading by lifting a spoonful from the bowl. It should drizzle back down slowly and mound gently.

Step 3

If making colored icing, divide into small bowls and stir in food colorings. (See recipe notes for tips on decorating.)

Step 4

Spread icing on cookies and immediate decorate with sprinkles, if using. Transfer decorated cookies to a baking sheet and let sit for 12-24 hours to harden completely before stacking and storing.

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