1. Prepare the Cake

   Start by baking your cake layers and allowing them to cool completely. Level the tops of the cakes to create an even surface for frosting.

   

2. Crumb Coat

   Apply a thin layer of frosting, known as a crumb coat, to seal in any loose crumbs. This will help create a smooth final layer of frosting. Use an offset spatula to spread the frosting evenly.

   

3. Chill the Cake

   Place the cake in the refrigerator for about 15-20 minutes to allow the crumb coat to set. This will make it easier to apply the final layer of frosting.

   

4. Apply the Final Layer

   Take the chilled cake out of the refrigerator and apply the final layer of frosting. Start by adding a generous amount of frosting on top of the cake and use the offset spatula to spread it evenly over the top and sides.

   

5. Smooth the Frosting

   To achieve a smooth finish, use a bench scraper or an icing smoother to gently scrape the sides of the cake while turning it on a cake turntable. This will help remove any excess frosting and create a polished look.

   

6. Decorate as Desired

   Once the frosting is smooth, you can decorate the cake with additional piping, sprinkles, or other decorations. Let your creativity shine!

   

By following these step-by-step instructions, you can achieve a smooth and flawless cake frosting. Remember to take your time and practice to improve your frosting skills!

For more detailed tutorials and tips, you can refer to reputable baking websites such as Sally's Baking Addiction or The Kitchn.