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2-Ingredient Protein Frosting Recipe

I’ve made a ton of protein frosting, icing, and fillings in my recipe experiments. In all honesty, it’s hard to mess frosting up because it’s sweet and creamy. But there’s gotta be a winner, and this recipe is the Tom Brady of protein frostings.

Before we get to the recipes, I have to admit something. All three recipes have two ingredients at their base, but you may have to add 1-2 things to make each unique. Don’t worry, they’re simple things like stevia, Swerve, or cocoa powder. I just didn’t want you to think all three would be two ingredients.

And before you get to the protein frosting recipes, I’d like to suggest a few recipes that go well with this frosting:

reese's protein cheesecake

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Protein Frosting Ingredients

This will obviously be a short list. Other than protein, your core ingredient will be fat-free evaporated milk. Since some fat-free versions have a ton of added sugar and come out the same in terms of calories, I recommend Nestle Carnation. One serving has only 25 calories. If you shop at Kroger, I’ve noticed they have a comparable product as well.

I’ll add that any milk works here, but plant-based milk like almond or soy milk don’t turn out as creamy. If you’re experimenting with other types of milk, start with 1/2 the amount the recipe calls for and add slowly until your protein frosting has the consistency you’d like.

best milk for low calorie recipes

You can use any protein you’d like. I find that a vanilla protein with added cocoa gives a better chocolate taste, but you could just use chocolate protein and omit the cocoa if you like. As for protein recommendations, I go withOptimum Nutrition Gold Standard Whey and/or Dymatize’s Whey or Elite XT blended protein. They’re reputable brands that have been around forever.

The macros in both recipes are with Gold Standard Whey. 

No matter what protein you use, the infographic below may help when looking at labels so you get the best quality/price.

how to choose the best protein powder

A Serious Recipe Upgrade

This recipe originally called for stevia as its sweetener. I still love stevia and still use it regularly, but I understand that some don’t enjoy the taste. So, I’ve been experimenting with other low-calorie sweeteners and have fallen in love with Swerve’s confectioner’s blend.

Swerve is a sweetener that subs 1:1 for sugar and is made from erythritol and oligosaccharides (similar to the IMO syrup I used for the homemade quest bars). If you don’t have an issue with artificial sweeteners, I would highly suggest picking some of this up. So far, I’ve found it works a bit better in baked recipes than stevia as well. I got mine on Amazon here.

If you don’t have any on hand, a granular sweetener like stevia will work just fine.

protein frosting recipe

Rainbow Protein Frosting

Yield: 1
Prep Time: 2 minutes
Total Time: 2 minutes

The best tasting protein frosting yet.



  1. Mix all ingredients in a small bowl.


178 Calories | 27P | 12 C | 2F

For Chocolate Protein Frosting

  • 1 scoop Vanilla or Chocolate Protein Powder
  • 4 Tbsp (60mL) Fat-Free Evaporated Milk
  • 1 Tbsp (5g) Unsweetened Cocoa Powder
  • 1 Tbsp Swerve Confectioners
Nutrition Information:
Serving Size: 1 servings
Amount Per Serving: Calories: 178Total Fat: 2gCarbohydrates: 12gProtein: 27g

Want more kinda healthy recipes?

Follow me on Pinterest to see all of my recipes organized in one place with photos!

high protein brownie recipe

One last suggestion before you go would be to try the one-minute protein mug brownie with the chocolate frosting. It’s next level tasty!

If you make any of these protein frosting recipes or any other recipe on my site, tag me in your creation on Instagram. I hope you enjoy!

A frosting that has nearly 30 grams of protein and tastes like actual frosting?!?

You'll love this ooey-gooey microwaveable chocolate protein brownie that's ready in one minute and packs 13 grams of protein into 100 calories.
100-Calorie Protein Mug Brownie
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