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The Best Strong Royal Icing for Gingerbread House Glue and Decoration

A dollop of thick, glossy white royal icing showing stiff peaks, perfect for gingerbread house icing.
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Make sturdy gingerbread houses using this reliable royal icing recipe. It works perfectly as edible glue for assembly and pipes well for detailed holiday decorating.

Ingredients

Scale
  • 4 large egg whites (or 4 tablespoons meringue powder)
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon lemon extract (optional)
  • 4 cups confectioners’ sugar (powdered sugar), sifted
  • 1/4 teaspoon cream of tartar (if using egg whites)

Instructions

  1. If using egg whites, place them in a clean, grease-free mixing bowl. Add the cream of tartar. Beat on medium speed until soft peaks form. If using meringue powder, combine it with 1/2 cup of warm water and let it sit for 5 minutes before proceeding to the next step.
  2. Add the vanilla and lemon extracts (if using) to the egg whites or meringue mixture. Beat briefly to combine.
  3. Gradually add the sifted confectioners’ sugar, one cup at a time, beating well after each addition. Start on low speed to prevent the sugar from flying out, then increase to medium-high.
  4. Beat the icing on medium-high speed for 5 to 7 minutes until it is very stiff, glossy, and holds stiff peaks. This is the consistency you need for strong gingerbread house glue.
  5. To test the consistency: Lift the beaters; the icing should form stiff peaks that do not droop.
  6. For building the house, use the icing immediately. For decorating, if the icing is too stiff, add a few drops of water at a time until you reach a pipeable consistency. If it is too thin, add more sifted confectioners’ sugar, one tablespoon at a time.
  7. Use immediately for assembly. For decorating, transfer the desired amount to piping bags fitted with tips.
  8. Allow the assembled house to dry completely, usually overnight, before adding final decorations.

Notes

  • For the strongest ‘gingerbread house glue,’ keep the icing very stiff—thicker than what you would use for simple cookie borders.
  • If you prefer not to use raw egg whites, meringue powder provides a safe, reliable alternative for this sturdy royal icing recipe.
  • This icing dries hard and fast, which is essential for holding walls and roofs together.
  • To store leftover icing, press plastic wrap directly onto the surface of the icing in an airtight container to prevent a crust from forming. Store in the refrigerator for up to one week.

Nutrition

Find it online: https://cookingbycarla.com/gingerbread-house-icing-recipe/