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Best Easy No-Fail Royal Icing for Gingerbread Houses

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This no-fail royal icing recipe is perfect for gingerbread houses. It dries rock hard, holds tight, and is quick and easy to make with simple ingredients like powdered sugar, meringue powder, and cream of tartar.

Ingredients

Scale
  • 4 cups (480 grams) powdered sugar (confectioners’ sugar), sifted if possible
  • 3 tablespoons (about 30 grams) meringue powder (preferably Wilton brand)
  • 1/2 cup (120 ml) room temperature water, plus 1 to 2 tablespoons as needed
  • 1 teaspoon (about 4 grams) cream of tartar
  • 1/2 teaspoon vanilla extract (optional, for flavor; use clear vanilla for pure white icing)

Instructions

  1. Combine the dry ingredients: In a large mixing bowl, whisk together the 4 cups of powdered sugar, 3 tablespoons of meringue powder, and 1 teaspoon of cream of tartar. Whisking them together first helps prevent the meringue powder from clumping when you add the water.
  2. Add the water: Pour in 1/2 cup of room temperature water. If using vanilla extract, add it now. Start mixing on low speed to avoid a cloud of powdered sugar flying everywhere.
  3. Mix until combined: Once the sugar is incorporated, increase the speed to medium-high. Beat for about 5 to 7 minutes. The icing should become thick, glossy, and smooth. You’re looking for ‘stiff peaks’ — when you lift the beater, the icing should form a peak that holds its shape without drooping. If it’s too runny, add a little more powdered sugar (a tablespoon at a time). If it’s too thick, add water a teaspoon at a time.
  4. Test the consistency: For gingerbread house assembly, you want a stiff consistency. The icing should hold its shape when piped. To test, pipe a small dot on a piece of parchment paper. If it holds its shape without spreading, you’re good to go.
  5. Cover and rest: Immediately cover the bowl with a damp cloth or plastic wrap. Let it rest for about 5 minutes. This gives the meringue powder time to fully hydrate, which makes the icing even stronger.
  6. Fill your piping bags: While the icing rests, prepare your piping bags. Fit them with your desired tips. If using a zip-top bag, snip a tiny corner off — start small, you can always cut more.
  7. Pipe and assemble: Pipe a thick line of icing along the edges of your gingerbread pieces. Press them together firmly and hold for about 30 seconds. The icing will start to set quickly. For the roof, pipe a line along the top edges of the walls, then press the roof pieces on. Use cans or jars to prop up the walls if they need extra support while drying.
  8. Let it dry completely: Let your gingerbread house dry for at least 2 to 3 hours before you start decorating. For best results, let it dry overnight.

Notes

Keep the icing covered with a damp cloth at all times to prevent it from drying out. For best structural stability, let the assembled house dry overnight. If the icing is too runny, add more powdered sugar; if too thick, add water a teaspoon at a time. This icing is not recommended for freezing.

Nutrition

Keywords: royal icing, gingerbread house, no-fail, easy, Christmas, holiday, meringue powder, edible glue

Find it online: https://lolaspoon.com/best-easy-no-fail-royal-icing-for-gingerbread-houses/