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The Best Royal Icing Recipe Using Meringue Powder for Hardening

A spoonful of thick, bright white royal icing recipe mixture being lifted from a clear glass bowl.
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Follow this simple, no-fail royal icing recipe using meringue powder to create smooth, glossy icing that dries hard, perfect for detailed sugar cookie decorating.

Ingredients

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  • 3 tablespoons meringue powder
  • 4 cups powdered sugar, sifted
  • 6 tablespoons warm water
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon cream of tartar (optional, for stability)

Instructions

  1. In a large bowl, combine the meringue powder and warm water. Whisk by hand or use an electric mixer on low speed until the mixture is frothy, about 1 minute.
  2. Add the sifted powdered sugar and cream of tartar (if using) to the bowl. Mix on low speed until the sugar is incorporated into the liquid.
  3. Increase the mixer speed to medium-high. Beat for 5 to 7 minutes until the icing is very thick, glossy, and holds stiff peaks. This whipping time is key for a hard finish.
  4. Add the vanilla extract and mix briefly to combine.
  5. To achieve piping consistency (for outlining), add water one teaspoon at a time until the icing flows slowly off a spoon.
  6. To achieve flood consistency (for filling), add water one teaspoon at a time until the icing flows easily and leaves a trail that disappears in about 10 seconds when you drizzle it across the surface.
  7. Divide the icing into bowls for coloring or use white. Cover bowls tightly with plastic wrap, pressing the wrap directly onto the surface of the icing to prevent crusting.
  8. Use immediately for decorating cookies.

Notes

  • For stiff consistency (piping details), use the icing as is after whipping.
  • For 10-second flood consistency, aim for the water level that allows the trail to vanish in 10 seconds.
  • If the icing becomes too thick while decorating, add water a few drops at a time. If it is too thin, add a tablespoon of sifted powdered sugar.
  • This icing dries firm and hard, suitable for stacking cookies.
  • If you are interested in structured meal planning while you bake, look into meal planning services.

Nutrition

Find it online: https://blissbatter.com/royal-icing-recipe/