Whip up this easy 2 ingredient buttercream frosting with powdered sugar in minutes. Light, fluffy, and perfect for topping cakes, cupcakes, and cookies.
In a small bowl, combine the hot water with the powdered sugar. Stir until fully dissolved and smooth, creating a thin glaze with no lumps.If using an extract, add it to the glaze and mix well. Cover the bowl to prevent the glaze from crusting, then set it aside to cool completely.
In a large mixing bowl, add the room-temperature butter. Using a mixer, beat on low speed for a minute, then gradually increase to high. Continue mixing for a few minutes until the butter becomes pale, fluffy, and almost doubles in volume.
With the mixer on low to medium speed, slowly pour the cooled glaze into the butter. Mix until fully incorporated, then beat for a bit longer to ensure a smooth and creamy consistency.
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Notes
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