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Easy 3-Ingredient Sugar Cookie Icing Recipe for Perfect Hard Shine Finish

3-ingredient sugar cookie icing - featured image

A quick and simple icing recipe using just powdered sugar, light corn syrup, and vanilla extract that creates a glossy, hard finish perfect for sugar cookies.

Ingredients

Scale
  • 2 cups (240g) powdered sugar (confectioners’ sugar)
  • 2 tablespoons (30ml) light corn syrup
  • 1 teaspoon (5ml) vanilla extract
  • Optional: up to 1 teaspoon milk or water for thinning

Instructions

  1. Sift 2 cups (240g) of powdered sugar into a mixing bowl to avoid lumps.
  2. Add 2 tablespoons (30ml) of light corn syrup and 1 teaspoon (5ml) of vanilla extract to the bowl.
  3. Mix thoroughly with a whisk or spoon until the mixture is glossy and smooth, thick but spreadable.
  4. If the icing is too stiff, add a few drops of water or milk cautiously; if too thin, add a pinch more powdered sugar.
  5. Spread the icing evenly on cooled sugar cookies using a spatula or the back of a spoon, working quickly.
  6. Place the iced cookies on a wire rack and let dry at room temperature for 4-6 hours or overnight until the icing hardens to a shiny, crisp finish.

Notes

Sift powdered sugar to avoid lumps. Work on cooled cookies to prevent melting. Add liquid sparingly to avoid sticky icing. Let icing dry in a cool, dry place for best results. Use gel food coloring for coloring without thinning. Store icing in airtight container up to 3 days. Avoid refrigeration of iced cookies to prevent condensation.

Nutrition

Keywords: sugar cookie icing, easy icing recipe, 3-ingredient icing, glossy cookie icing, hard finish icing, quick cookie icing