Protein Powder Buttercream Frosting

You can find the complete recipe at The Charlie Foundation!

This is a great way to frost a birthday cake, use to decorate cookies, whatever you need frosting for!  One of the best parts of this frosting is that it contributes to the protein requirements, rather than the carbohydrate requirements for ketogenic meals.  This makes it much easier to combine with a cake recipe (which is often higher in carbohydrate) to make a balanced meal that is not carb heavy.  The frosting behaves just like typical buttercream frosting so make sure you don’t let it sit in hot direct light!  It will also harden (just like butter) in the fridge, so decorate your cupcake or cake and either eat it right away or let it sit for a few minutes to come back to room temperature.

You can NOT warm this in the microwave or re-whip it after it has hardened.  It will separate and break apart.  Once a cake is decorated and stored int he fridge it will keep for serving, but like I said, don’t try to re-whip it or heat it.

The recipe is easily modified to be 4:1, 3:1, & 2:1.  Any lower and you need so much protein powder, you can never get the “flavor” of it to go away.  You can also find this as a food item in the KetoDietCalculator under the “fat” category.  It is also under the “standard snacks” section with instructions.

Use a good quality extract to get the best flavor.  Our favorites were orange and lemon, although vanilla works beautifully as well.  Consider adding crushed fruit for both flavor and color as well. If you have questions about this recipe, please comment below!

The Charlie Foundation’s ketogenic diet recipe page


  1. Is there a cake that I can make that goes with this frosting? How do I add this frosting in with another recipe? Is it in the ketocalculator? My daughters birthday is coming up in December and I’m not sure how I can make her a cake. She is on the 4:1 ratio.

  2. Just saw the thanksgiving recipes on the Charlie Foundation website. Thank you thank you thank you thank you thank you!!! Seriously can’t tell you how much it means to me to be able to give Colin a real Thanksgiving dinner!!!

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.