How to Frost a Layer Cake

Learn how to frost a layer cake at home like a pro!

How to frost a layer cake - it's not that scary, I'll show you how!

I’ve put off writing this post for years because I’ve felt like I’m not the most qualified expert when it comes to frosting and decorating cakes, even though I make them all the time. There are literally thousands of other tutorials out there from bakers who seem to know more. I haven’t worked in bakery and I don’t have a cake decorating business.

And then I thought that perhaps that’s my strength. I’m just like you!

I’m a gal who likes to bake cakes and I’ve learned over the years from watching others— and, more importantly through trial and error— how to make cakes more lovely and impressive. Frosting a layer cake isn’t that difficult or complicated, and knowing a few simple tricks can take your home-baked cake from basic to beautiful.

Come follow along, I’ll teach you what I know!

How to frost a layer cake - it's not that scary, I'll show you how!

What you’ll need

Truth be told, you don’t need any special equipment to frost a layer cake, but a few specific tools can go a long way to making the task easier. Here’s what you’ll need:

(Disclosure: this post contains affiliate links.)

  • Prepared cake layers— For best results, they should be chilled. See my tutorial on how to make and store layer cakes ahead of time. They should also be flat on top, remove any domes as needed (or see my tutorial on how to bake flat cake layers).
  • Prepared frosting— For a standard 8 or 9-inch layer cake you’ll need 4-5 cups.
  • Prepared filling— If you’re filling your cake with something other than frosting, such as fruit, chocolate, or whipped cream.
  • A turntable— I love my beautiful Ateco turntable, but I used a much cheaper turntable for years with the same results. It makes frosting a cake so much easier!
  • Cardboard rounds— For transporting frosted cakes from the turntable to the fridge and cake stand, etc.
  • Offset spatula(s)— I use multiple offset spatulas of various sizes while assembling a cake, and highly recommend this set of 3 (S, M and L). If you’re going to invest in just one thing for cake decorating, let it be this! Also, straight spatulas are handy too.

Note: For this tutorial I used my vanilla buttermilk cake and whipped vanilla buttercream frosting.)

How to frost a layer cake - it's not that scary, I'll show you how!

Stack and fill

Step 1— Place one cake layer top side-down on a cardboard round on top of your turntable, if using. Alternatively, place one cake layer top side-down on your cake stand or a plate.

Step 2— Spread frosting or filling on top. If you are using a soft filling like fruit preserves or lemon curd, etc., first build a “frosting dam” around the edge of the cake layer to hold the filling in place and prevent it from squishing out the sides when you add subsequent layers. You can use a piping bag and tip to pipe the dam, or just build up a wall with some frosting and a spatula.

How to frost a layer cake - it's not that scary, I'll show you how!

Step 3— Repeat with the rest of your layers. You can keep it simple with just 2 layers, or build a taller cake with as many layers as you’d like. You can easily get more layers by slicing your cakes in half horizontally.

Apply a crumb coat

The one simple thing that home bakers can do to take their cakes to the next level is to use a crumb coat. It’s a game changer! A crumb coat is a base coat of frosting applied to the whole cake to seal in crumbs and even out the surface of your cake. This way the finished cake is smooth, even, and crumb-free.

How to frost a layer cake - it's not that scary, I'll show you how!

Step 4— Apply a thin coat of frosting over the whole cake. If your frosting is very thick, you may want to thin 1-2 cups of the frosting (depending on the size of your cake) with a little milk to use as your crumb coat.

I like to start at the top and then work my way down, filling in any gaps and evening out any uneven layers. Set an offset spatula perpendicular to your turntable or cake stand and glide it around your cake to create a smooth finish.

Note: If you’re a fan of the rustic “naked cake” look, then once you’ve applied the crumb coat you’re done! Simply chill, then serve.

How to frost a layer cake - it's not that scary, I'll show you how!

Step 5— Chill the cake for at least 20 minutes to set the crumb coat.

Note: It can be hard to fit a whole frosted cake + cake stand in the fridge, which is why I recommend using cardboard cake rounds. They make transporting layer cakes so much easier.

How to frost a layer cake - it's not that scary, I'll show you how!

Apply final coat of frosting

Step 6— Now you’re ready for your final coat of frosting! Again, I like to start at the top and work my way down. But unlike with the crumb coat, apply a generous amount of frosting.

How to frost a layer cake - it's not that scary, I'll show you how!

Once the cake is completely covered, smooth out the frosting with your offset spatula. Set an offset spatula perpendicular to your turntable or cake stand and use long, steady strokes to get a clean, smooth finish. I’ve seen lots of bakers use a bench scraper to smooth out the sides of their cakes, which is awesome, I’ve just always used an offset spatula.

How to frost a layer cake - it's not that scary, I'll show you how!

To smooth out the top of your cake, take the edge of your spatula and drag it from the outside edge inward to the center. Wipe your spatula clean, rotate the cake, and repeat until you’ve gone all the way around.

How to frost a layer cake - it's not that scary, I'll show you how!

Decorate and serve

Step 7— You can decorate your frosted cake however you choose, with sprinkles, piped decorations, etc.

If you used a turntable, you can transfer the cake to a cake stand or plate now, or you can wait until you’re ready to serve.

Step 8— Chill for at least 30 minutes to set the frosting before slicing. If you are planning to transport your cake, chill for at least 1 hour to make sure it’s as firm as possible. Take it out of the fridge just before traveling.

I actually like to store all of my layer cakes in the fridge to ensure the frosting stays in place and to keep it safe and protected. Take it out of the fridge about 20 minutes before cutting so the frosting has some time to soften at room temperature.

How to frost a layer cake - it's not that scary, I'll show you how!

And that’s it! You’ve done it!

Do you have any tried and true frosting tips you didn’t see here? I’d love to hear about it in the comments!

My favorite cake tools