If you don’t have a dehumidifier, turn on the cool air-conditioning instead. This also helps to prevent the icing from losing its shape.
If you don’t want to use an oven, use a heat lamp instead. Place the tray into the middle of the oven to allow for maximum airflow. Since sugar can absorb smells and tastes, your oven must be really clean, or you run the risk of making your royal icing taste like your dinner. [3] X Research source
This works best on cakes or cookies with a single layer of icing, as multiple levels of icing are more fragile and tend to be affected by the strong wind from a fan.
Purchase a heat gun online or from a specialty baking store.
If your kitchen is particularly humid, place your baking in another room where the air is cooler and drier. However, make sure to choose a spot where the baking won’t be knocked over or eaten by pets or children.
Similarly, avoid putting your baked goods in the freezer to dry, as the condensation can ruin the icing.
If you don’t have much room in your kitchen, consider placing your baked goods on a desk or table instead.
