Pistachio Buttercream is a light and fluffy frosting made with just four simple ingredients, including a package of pistachio pudding mix. Be sure to try the buttercream on my Spumoni Cake.

Pistachio Buttercream

After attempting to make this frosting from scratch, I finally decided to use a packaged pudding mix. Pistachio Buttercream tastes delicious with a salt and sweet flavor in every bite. Again, I made this specifically for my Spumoni cake, but I can’t wait to try it on some of my other recipes like my vanilla wafers.

Pistachio Buttercream!

Pistachio Buttercream Ingredients

This creamy frosting can be made with just four simple ingredients.

Butter: Make sure the butter is at room temperature before making the buttercream.

Pistachio Pudding: You will just need a box of the dry pudding mix; no need to make the pudding.

Confectioners’ Sugar and Milk: The final process in this recipe is to alternate between adding the milk and remaining confectioners’ sugar until the buttercream reaches your desired consistency.

Spumoni Rose Cake!

How to Make Pistachio Buttercream

This pistachio buttercream is so easy to make and would be delicious on all flavors of cake, from chocolate cake to vanilla cake to strawberry cake! To make the buttercream, first, cream the butter for about a minute until creamy. You can use a stand mixer or a handheld mixer.

Once the butter is smooth and creamy, add the pistachio pudding mix and one cup of the confectioners’ sugar. Mix on low until the ingredients have been incorporated. Finally, alternate between adding a tablespoon of milk and 1/2 cup of sugar until the buttercream reaches your desired consistency.

Spumoni Rosette Cake!

Looking for More Buttercream Recipes?

Marshmallow Buttercream

Whipped Vanilla Buttercream

American Buttercream Frosting

Chocolate Buttercream Frosting

Pistachio Buttercream!

Pistachio Buttercream

Prep Time 5 minutes
Total Time 5 minutes
Pistachio Buttercream is a light and fluffy frosting made with just four simple ingredients, including a package of pistachio pudding mix.

Ingredients

  • ½ cup (1 stick or 113g) butter, room temperature
  • 1 package (3.4 ounces) pistachio pudding mix
  • 3 cups confectioners' sugar, divided
  • 5 tablespoons cold milk, divided

Instructions

  • Add butter to the bowl of a stand mixer (or use a handheld mixer) and beat on medium speed until creamy, about 1 minute.
  • Turn off mixer and add all the pistachio pudding mix and 1 cup of confectioners' sugar. Mix on low until ingredients are incorporated.
  • Alternating the milk with the remaining sugar, add a tablespoon of milk at a time and a ½ cup of confectioners' sugar at a time until all ingredients are incorporated.

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Thank you for making my recipe! You took pictures, right? Well go ahead and post them on Instagram! Be sure to mention me @iambaker and use the hashtag #YouAreBaker.

And ALL CAKE.  I want to EAT ALL THE CAKE and PISTACHIO BUTTERCREAM.

I will stop yelling now.  But I still want to eat it all.  And so will you!

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Meet Amanda Rettke

Amanda Rettke is the creator of I Am Baker, and the bestselling author of Surprise Inside Cakes: Amazing Cakes for Every Occasion – With a Little Something Extra Inside.Over the course of her 15+ year blogging adventure, she has been featured in and collaborated with the Food Network, New York Times, LA Times, Country Living Magazine, People Magazine, Epicurious, Brides, Romantic Homes, life:beautiful, Publishers Weekly, The Daily Mail, Star Tribune, The Globe and Mail, DailyCandy, YumSugar, The Knot, The Kitchn, and Parade, to name a few.

Reader Comments

  1. Should the pudding be instant or cook and serve? I’m making the spumoni cake tonight for my daughter’s birthday tomorrow. All of us can’t wait to eat it! 🙂

    1. Yes, it was gritty! It felt like I was eating sugar in it…Do we have to refrigerate the cupcakes eith this frosting?

  2. I have a very old recipe for a pistachio Bundt cake. I’ve made it many times. There is a cool whip/pistachio type icing that fills the center of the cake. The cake also has the same pudding in the mix. We are talking 1970’s but still very good.

  3. From Kristi’s last comment, there are TWO kinds of pudding..instant and the cook/serve type. Both the instant and cook type are dry pudding powder. You just need to be a bit more clear and specify if the user should use the instant or the cook type pudding.

  4. I didn’t have an awful time with this recipe, but mine was gritty too. 🙁 It tasted great and it’s a great idea to mix pudding in a buttercream Maybe I’ll mix half of the pudding with the milk and dissolve it before adding to the “mix” lol! Thank you for the recipe! There aren’t a lot of easy recipes for pistachio buttercream. 🙂

  5. I love all your Buttercreams that I’ve tried. Your decorator icing is my go to. And your chocolate also. I’ve also tried many of your baked goods recipes. But I honestly say this was a fail. It tasted good, but I could not remove the gritty texture. I went back and added melted butter. And really it never had a creamy texture. I added a bit if whipped topping, hoping to lighten the texture, which it did. But the gritty is still there. I followed directions, but then had to take my own course. Not happy with this one sorry. But u still love following you and have appreciated every thing else I’ve tried.

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