Empty the entire pack of buttercream into a microwave-safe bowl. Microwave the buttercream for 5 seconds on medium power setting.
Using a hand mixer, whip it on medium speed until it reaches a smooth and creamy consistency.
Ready to use. Your buttercream is now smooth, fluffy, and ready for decorating your cakes and cupcakes!
If you’re decorating a cake and want a smoothest, bubble-free buttercream, mix it in a stand mixer using the paddle attachment on a low to medium speed for around 15 minutes.