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Cookie Icing That Hardens Recipe

4.7 from 64 reviews

This Cookie Icing recipe creates a smooth, glossy finish that hardens perfectly on cookies, making it ideal for decorating. The icing is easy to prepare with simple ingredients like powdered sugar, vanilla, and corn syrup. Once applied to cookies, it dries to a firm texture, adding both sweetness and a decorative touch.

Ingredients

Scale

Ingredients

  • 3 cups Powdered Sugar
  • 1/2 tsp Vanilla Extract
  • 2 tsp Light Corn Syrup
  • 5 tbsp Warm Water
  • Food Coloring (as needed)

Instructions

  1. Sift Powdered Sugar: Sift 3 cups of powdered sugar into a medium to large mixing bowl to ensure there are no lumps, which helps achieve a smooth icing texture.
  2. Add Liquids: Pour in 5 tablespoons of warm water, 2 teaspoons of light corn syrup, and 1/2 teaspoon of vanilla extract into the sifted powdered sugar.
  3. Mix Until Smooth: Stir the mixture thoroughly with a spatula until the icing becomes smooth and uniform in texture without any lumps.
  4. Divide & Color: Pour the icing into smaller bowls depending on the number of colors desired, then add food coloring to each bowl to reach your preferred shade.

Notes

  • Use warm water to help dissolve powdered sugar quickly for a smoother consistency.
  • The corn syrup adds shine and helps the icing harden nicely.
  • You can adjust the thickness by adding more powdered sugar for thicker icing or a bit more water for thinner icing.
  • Let the iced cookies dry at room temperature for several hours until the icing is fully hardened.
  • This icing is perfect for detailed decorating as it hardens with a glossy finish.

Keywords: Cookie Icing, Hardening Icing, Powdered Sugar Icing, Cookie Decorating, Easy Icing