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How to Make the Perfect Buttercream Consistency + Troubleshooting Tips

May 27, 2022 · In: Cake Basics, Featured, Tutorials

One of the number one questions I get from blog readers and social media followers is what kind of buttercream I use for my cakes. Regardless of the flavors I’m working with, the base of every frosting recipe I write is American buttercream. Specifically, one that I’ve tweaked to be less sweet than standard, customizable to suit any flavor profile, a breeze to make, and a total dream to work with. This post will focus on how to alter any of my buttercream recipes (or really, any American buttercream recipe) to be the perfect consistency for different kinds of cake decorating scenarios. I’ll even take it a step beyond and show you how to fix common buttercream problems should they ever occur. This way, you’ll always know just what to do when it comes to making the perfect batch of buttercream! 

buttercream consistency chart

Here’s a quick video that explains the differences between each buttercream consistency and shows you how to make it before we get into the details below:

If you want to see more videos like this one, check out my YouTube Channel. I’ve got a growing collection of recipe videos, cake decorating tutorials, and my Cake Basics series in video format. Click subscribe while you’re there so you never miss a new video! 

3 Types of Buttercream Consistency

There are three different consistencies of buttercream that each play a different role in cake decorating. All of the info you’ll find on this post can be paired with any of my buttercream recipes, since they’re all American buttercream recipes. If you’re wanting to work with a different type of buttercream (such as Swiss Meringue, Whipped Cream, etc.), you’ll want to search for info that’s specific to your buttercream type. Here’s everything you need to know about when to use each consistency and how to make it: 

Medium Consistency

I’m starting with medium consistency because it’s the consistency you’ll end up with when you make my vanilla buttercream recipe as-is. It’s also the most versatile of all the consistencies – perfect for filling and stacking a cake, crumb coating, frosting a smooth buttercream finish, and even decorating cupcakes with piping tips. 

vanilla buttercream recipe for frosting cake
10 ways to frost a cupcake

If you’re working with an American buttercream recipe that isn’t one of mine, you can check to see if your buttercream is medium consistency by dipping your spatula into it and observing the shape of the peak. It should be a soft peak that holds its shape for at least a few seconds when you turn it right side up. 

medium consistency buttercream

Thin Consistency

Thin consistency is perfect for a few things: painting with buttercream (this floral buttercream cake is a good example), writing out a message, or for frosting a super thin final layer of buttercream onto your cake. The second reason is more of a cake hack, which I shared in this YouTube video on how to get an extra smooth buttercream finish. 

spatula painted floral cake by sugar and sparrow

To make your buttercream thin consistency, add it back into the bowl of your stand mixer (if it’s not already there) and mix it on low speed while you add room temperature milk, 1-2 teaspoons at a time, until the desired consistency has been reached. To test it, you should be able to dip your rubber spatula into the buttercream and it will come out with super soft peaks that don’t really hold their shape, but also aren’t melty (see the troubleshooting tips below if it is). This consistency should spread very easily, which makes it perfect for more painterly textures.

how to thin out buttercream

Stiff Consistency

If you’re piping buttercream flowers, especially ones with petals that need to stand upright, or piping intricate designs like a lambeth cake, you’ll need a stiff consistency buttercream. Thickening your buttercream when necessary will help it to hold its shape and prevent your piping from looking droopy. 

buttercream camellia cupcakes

Another time that stiff consistency comes in handy is in the filling and stacking process, when you’re working with a soft filling that needs a piped buttercream dam around it to uphold the weight of the cake layers above. By slightly thickening your buttercream for the dam, it will be extra effective against the weight of gravity. This way, your filling won’t bulge out between the layers.

how to fill cake with chocolate ganache

To create a stiff consistency buttercream, add powdered sugar to your batch of buttercream, 2-3 Tablespoons at a time, until the desired consistency is reached. You can add as much powdered sugar as you’d like depending on how thick you want the buttercream. If you are concerned about making it too sweet, you can use cornstarch as an alternative. It won’t add any flavor to your buttercream. 

how to thicken buttercream for piping

To test the consistency, you should be able to dip your rubber spatula into the buttercream and it will come out with stiff peaks that hold their shape. It should pipe easily without having to put a lot of pressure on the bag and the piped details should not look frayed. If they do, you’ll want to thin out the buttercream slightly (see details on that in the next section). 

How to Fix Buttercream 

When you’re altering buttercream consistency, it’s entirely possible to overdo it. The good news is that whether you make your buttercream too thick or too thin, it’s easy to fix. I’ve thrown in some additional common problems just in case you need troubleshooting tips for those too: 

If it’s Too Thick 

You’ll know your buttercream is too thick if it’s ripping the cake layers while you’re trying to frost with it or the details look frayed when you pipe with it (like in the picture below). To fix it, simply add room temperature milk, 1 tsp at a time, until the consistency is just right.

buttercream too thick

If it’s Too Thin or Runny 

There are a few ways you’ll know your buttercream is too thin: it looks soupy, bulges out from between your cake layers when used as a filling, or the details droop when you try to pipe with it. Buttercream might end up too thin if you add too much liquid or if you’re working in a warm kitchen. Butter starts to break down above 75 degrees, so any environment above that will have an effect on your buttercream consistency.

To thicken your buttercream when you’ve added too much liquid, simply add more powdered sugar, 2-3 Tablespoons at a time, until the desired consistency is reached. If it’s more of a matter of the kitchen temperature being too warm, pop your buttercream into the refrigerator for about 10-15 minutes. Then, remix it in your stand mixer on low speed for a minute or two to bring it back together. The refrigeration should help the butter in the recipe firm up and stabilize the whole batch.

If it’s Filled with Air Bubbles

Sometimes when you’re making a batch of buttercream, extra air can get trapped inside, resulting in visible air bubbles throughout the mixture. This mostly happens when the buttercream is whipped on too high of a speed after adding the powdered sugar. To fix it, place the buttercream into an airtight container, let it rest at room temperature for about 20 minutes, then add it back into the bowl of your stand mixer and let it mix on low speed for about a minute. I don’t know why this works exactly, but the whole process somehow forces out all the extra air like magic. 

vegan vanilla buttercream frosting

If you didn’t realize your buttercream had air bubbles in it until you started frosting the cake, fear not. Frost a super thin layer of buttercream, air bubbles and all, and place the cake into the refrigerator while you fix the rest of the buttercream using the process described in the paragraph above. By the time you’ve got a smooth buttercream to work with, your frosted cake should be chilled to the point where you can frost an additional layer of buttercream over the top and fill in all of the air pockets in the buttercream layer beneath. 

To prevent air bubbles in the future, always mix on low speed from the time you add the powdered sugar until the end of the recipe. Low and slow is the ticket. 

If it Looks Curdled 

Typically, the buttercream becomes curdled if you start with butter that’s too soft or add milk that’s too cold. Both of these ingredients must be at room temperature for the buttercream to have a cohesive, smooth consistency. To fix it, place the entire batch of buttercream into the refrigerator for about 20 minutes, then re-mix it with your stand mixer for 2-3 minutes. It should look well-blended and smooth at this point. 

If it Feels Grainy or Gritty

Buttercream looks and tastes gritty if you haven’t given the powdered sugar enough time to dissolve. The powdered sugar will dissolve easiest if you sift out any large lumps prior to adding it. To fix the grainy consistency, add 1-2 additional teaspoons of room temperature milk and mix the buttercream on low speed for an additional 1-2 minutes. This should help the powdered sugar dissolve completely. 

cream cheese buttercream recipe by sugar and sparrow

Hopefully this post solves every buttercream consistency question you could ever have! But, if you’ve got more questions, feel free to post them in the comments below. I’m happy to help!

By: Whitney · In: Cake Basics, Featured, Tutorials · Tagged: buttercream consistency, buttercream frosting, buttercream too thick, buttercream too thin, buttercream troubleshooting, cake basics, cake decorating, fix buttercream, frosting consistency, medium consistency, stiff consistency, thin consistency

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Comments

  1. Laura Zeller says

    June 1, 2022 at 6:24 am

    Thank you so much, Whitney!

    Reply
    • Whitney says

      June 7, 2022 at 8:43 pm

      Of course, Laura!

      Reply
  2. Stephanie says

    June 10, 2022 at 9:41 am

    I am a home baker and I’m self-taught through tutorials like this one. I have learned so much just by watching your videos and just wanted to tell you how very much I appreciate you and the videos. I don’t know where I’d be without your help. Thanks so much!

    Reply
    • Whitney says

      June 11, 2022 at 3:10 pm

      You made my day with your kind words, Stephanie! I’m so happy you’re learning!!

      Reply
  3. Nayla H says

    August 15, 2022 at 12:37 pm

    Hello dear. Thank you so much for your tips.
    I am a home baker and it’s always a mess when making butter cream. I never get the right consistency, it’s either too hard or it’s soupy or just doesn’t sit on the cake. It’s never smooth, and like how a butter cream should be.
    What am I doing wrong ?

    Reply
    • Whitney says

      August 16, 2022 at 8:53 pm

      Hi Nayla! What kind of buttercream are you making? Have you tried my recipe? This one should be really easy to make and smooth: https://sugarandsparrow.com/vanilla-buttercream-recipe/

      Reply
  4. Jess says

    August 29, 2022 at 12:23 pm

    I love your buttercream it is so good. I was wondering when I store the buttercream and use it in a few days can you bring the consistency back to crumb coat your cake but have alot left over can you store it again and when you goto frost your cake take it out and use it after you let it sit and re- whip it or would the frosting me no good anymore?

    Reply
    • Whitney says

      August 30, 2022 at 2:40 pm

      Hi Jess! I’m so glad you’re loving my buttercream recipe! You can absolutely re-store the buttercream in the refrigerator after crumb coating. Just be sure to use it within two weeks of making it.

      Reply
  5. Freda Johns says

    September 17, 2022 at 2:42 pm

    Do you have recipes for stabilized Whipped Cream for cakes

    Reply
    • Whitney says

      September 21, 2022 at 11:00 am

      Hi Freda! I use a stabilized whipped cream in this cake recipe and I love it: https://sugarandsparrow.com/strawberry-shortcake-layer-cake/

      Reply
  6. Stephanie says

    September 23, 2022 at 6:13 am

    How do you recommend storing the cake when done decorating? For example, I am thinking about making a birthday cake the day before the party. How would you recommend storing it? In the past I put it in the fridge but the frosting became really hard and didn’t thaw in time.

    Reply
    • Whitney says

      September 27, 2022 at 11:07 am

      Hi Stephanie! I usually store a decorated cake in the refrigerator in a box and take it out 1-2 hours before serving to let it come to room temp. Hope that helps!

      Reply
  7. Sureyah Ruiters says

    November 5, 2022 at 2:43 pm

    Your tips was so helpfull to me, since im planning to bake my sons wedding cake. Thankyou so much. i Plan to bake a 3 tiered cake..wish me luck

    Reply
    • Whitney says

      November 6, 2022 at 8:21 pm

      Yay, Sureyah! I’m so happy these tips helped and I’m cheering you in making your son’s wedding cake!

      Reply
  8. Rebeca Arteaga says

    March 9, 2023 at 3:44 pm

    How can get my butter cream really white , mine always looks yellowish

    Reply
    • Whitney says

      March 13, 2023 at 9:37 am

      Hi Rebeca! I always whip the butter for at least 7 minutes at the beginning of the recipe, which makes it much more white to begin with, then sometimes I’ll add a little AmeriColor Bright White at the end of the recipe if I need it extra white: https://amzn.to/3Jyec0f

      Reply

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