Sift the Powdered Sugar: To ensure a smooth and lump-free icing, sift the powdered sugar into a mixing bowl. This step helps remove any clumps.

Add Meringue Powder: Incorporate the meringue powder into the sifted powdered sugar. Mix them together until they are well combined.

Add Warm Water: Gradually add warm water to the dry mixture. Start with 3 tablespoons of warm water and mix well. Depending on your desired icing consistency, you may need to add an additional tablespoon of water. Continue to mix until the icing is smooth and all ingredients are fully incorporated.

Check Consistency: Test the consistency of your royal icing. For outlining and creating fine details, you'll want thicker icing. For flooding and filling in designs, a slightly thinner consistency is required. Adjust the water content accordingly.

Mix Thoroughly: Continue to mix the icing until it reaches a smooth and glossy consistency. If you're using an electric mixer, use low speed to avoid introducing air bubbles.

Color the Icing (Optional): If you want to add color to your icing, divide it into separate bowls and mix in gel food coloring until you achieve the desired hues. Use a toothpick to add color gradually and achieve the shade you want.

Cover and Store: To prevent the royal icing from drying out, cover it with plastic wrap or place it in an airtight container. If you're not using it immediately, make sure the surface is in contact with the plastic wrap to prevent a crust from forming.

Use as Desired: Your royal icing is now ready to use for decorating cookies, cakes, cupcakes, gingerbread houses, or any other baked goods. Experiment with piping, flooding, and creating intricate designs to bring your edible creations to life.