WebstaurantStore / Food Service Resources / Blog

How to Frost a Cake

If you are planning to start a bakery, knowing how to ice a cake is an essential part of the business. We’ll show you a few frosting tips to help you achieve smooth and clean sides on your cakes for a professional-looking final product. Learning how to frost a layer cake will allow you to create a strong foundation for any celebration, from weddings and graduations to birthdays and baby showers.

Tools You’ll Need to Frost a Cake Smoothly

In order to learn how to frost a cake smoothly, you’ll want to start by stocking up on the proper tools. Here’s are some cake decorating tools we recommend to help you get started:

  • Cake board or cake circle
  • Cake turntable
  • Cake leveler or serrated knife
  • Straight baking spatula
  • Offset backing spatula
  • Cake scraper/ Bowl scraper

If you do not have access to a cake turntable, you may use a mixing bowl turned upside down with a plate or upside down cake pan on top that fits the diameter of your cake.

How to Decorate a Cake: Step By Step

1. Trim the Cake

Leveling a cake with a cake wire
  • Before you can start working with your cake, make sure that each tier of your cake is completely cooled.
  • Start by using the cake leveler or serrated knife to cut off the slightly domed top of your sponges.
  • Use your cake board as a template and trim off the browned edges around your sponge.

Tip: Place a piece of parchment under each sponge to make them easier to lift and maneuver. You can use the scraps of the cake to make cake pops afterwards.

2. Stack the Cake

Stacking two layers of cake sponges
  • Start by adding a dollop of icing onto the center of your cake board or plate and slightly spread it around. This will keep the cake sponge from sliding around while you work with it.
  • Place the first sponge onto the center of your cake board.
  • Using a piping bag, pipe a swirl of icing along the top of your first cake tier.
  • Use your offset spatula to smooth out the icing evenly. You can add any additional fillings at this time.
  • Set the next layer of sponge directly even with the layer of sponge below it.
  • Repeat the icing and stacking steps until you have reached the top tier of the cake. Do not ice the top of the final sponge yet.

Tip: Place a few strips of parchment paper under the edges of your cake, that way you can remove them after icing to keep the surface around the cake clean and presentable. Remove them once you’ve finished decorating the cake by sliding a knife between the cake and the parchment.

3. Add the Crumb Coat

Leveling a Crumb Coat on a Cake

You may be asking yourself, “what is a crumb coat?” A crumb coat is a light layer of icing that forms a barrier between the sponge’s surface and the final coat of icing. It ensures that crumbs stay out of the outer layer of frosting so that the finished product is smooth and without blemishes. Follow these steps to learn how to crumb coat a cake:

  • Spread a layer of frosting over the sides of the cake using a straight spatula. The icing layer does not have to be thick. You should be icing on the opposite side of the cake from the hand you are using.
  • Spin the turntable with your free hand to reach each side of the cake instead of maneuvering yourself around the cake.
  • Once the sides are covered, use the offset spatula to spread frosting over the top of the cake. Sweep the excess frosting towards the center of the cake to create a clean edge.
  • Chill the cake in the refrigerator for about 30 minutes to an hour.

Tip: If you want to achieve a naked cake look, you can stop at this step.

4. Frost the Cake

Frosting a cake
  • Spread a thick layer of buttercream icing over the sides of your cake, approximately 1 centimeter in thickness, using a straight spatula. Don’t worry about it being perfectly smooth at this stage.
  • Angle the cake scraper at 90 degrees to the cake and spin the turntable to sweep the scraper across the surface of your cake and distribute the buttercream evenly. As the icing spreads, you’ll see some excess building on the front of the scraper. Simply return the excess to your icing bowl.
  • Add a dollop of icing to the top of your cake and spread it evenly across the top with your offset spatula.
  • Using the cake scraper, sweep the excess from the edges towards the center of the cake to create a smooth surface.

Tip: Be sure to not lift your spatula or scraper directly off the cake to keep from peeling off the crumb coat. Sweep the spatula over the surface of the cake and angle it off instead of lifting away.

5. Add Final Decorations to the Cake

At this point, your cake should be frosted smoothly and ready for any further decorations. You can now add some piped buttercream roses or writing to the top of the cake to customize it to your customers’ liking.

Cake Decorating Tips

Decorating a cake

Learning how to decorate a cake with icing is an essential skill for any baker. Here are a few more tips to keep in mind to improve your cake-making efficiency and ensure that your cakes look professional every time.

Reduce Cake Doming

Cake doming is usually caused by baking at temperatures that are too high for the batter. Use a thermometer to ensure that your oven is reaching the desired temperature of your recipe. You can also use a wet cake strip around your cake pan to keep the outside of your cake from cooking too quickly.

Easily Coat Your Cake

You may want to decorate the sides of your cake with a coating of sprinkles, nuts, red velvet crumbs, etc. To do so, hold a bowl under the edge of your cake and pat a handful of your decoration onto the side of your cake, allowing the excess to fall into the bowl below.

Practice Your Piping

Piping words onto a cake can be challenging! Before you add your message to the cake, practice your piping on a piece of paper by testing out different types of pastry bags and tips. Once you’re comfortable piping your message, outline your message on the cake with a toothpick and follow the outline to create a neat and legible final product.


Once your cake is perfectly frosted and decorated, cut the cake for your guests and serve! You’ll be preparing showstopping cakes in no time after implementing some of these tips and tricks!

Posted in: Bakeries | By Janine Jones
Leave a Comment

A WebstaurantStore account is required to comment. Already have an account? Log In Here or Create an account.

Webstaurant TVProduct demonstrations, how-to's, & descriptions ArticlesIn-depth information and tips for running a successful restaurant Buying GuidesTools to help you find the perfect product for your business