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Sugar Cookie Icing That Hardens Recipe

4.8 from 104 reviews

This Sugar Cookie Icing recipe creates a smooth, glossy icing that hardens beautifully, making it perfect for decorating sugar cookies. With a simple blend of powdered sugar, corn syrup, and flavorings, this icing provides a sweet, sturdy finish that holds vibrant gel food colors well.

Ingredients

Scale

Basic Icing Ingredients

  • 2¼ cups powdered sugar
  • 2 tablespoons light corn syrup
  • ½ teaspoon clear vanilla flavoring
  • ½ teaspoon almond extract
  • 23 tablespoons milk
  • Gel food color (optional, as desired)

Instructions

  1. Mix Ingredients: In a medium-sized mixing bowl, stir together the powdered sugar, light corn syrup, clear vanilla flavoring, almond extract, and 2 tablespoons of milk. Mix thoroughly until the icing is smooth and free of lumps.
  2. Divide and Color: Evenly divide the icing into 4 small bowls. Add 3 to 5 drops of gel food color to each bowl to achieve your desired colors, and stir well to incorporate the coloring evenly.
  3. Prepare for Decorating: Transfer each colored icing into individual quart-size Ziploc bags or piping bags. Seal tightly and snip a corner to prepare for decorating.
  4. Apply and Set: Decorate your sugar cookies with the prepared icings. Allow the iced cookies to sit undisturbed for 12 to 24 hours to let the icing fully set and harden into a glossy finish.

Notes

  • Adjust milk quantity to achieve desired icing consistency; more milk for thinner icing, less for thicker.
  • Use gel food coloring for vibrant colors without altering icing consistency.
  • Ensure cookies are completely cooled before icing to prevent melting.
  • Store leftover icing in airtight containers to prevent drying out.
  • Allow sufficient drying time for icing to harden completely before stacking or packaging cookies.

Keywords: sugar cookie icing, hardening icing, royal icing alternative, cookie decorating, no bake icing