Sugar-Free Peanut Butter Frosting Recipe

Peanut butter frosting
Peanut butter frosting photo by Sally Crossthwaite / Getty Images
  • 10 mins
  • Prep: 10 mins,
  • Cook: 0 mins
  • Yield: about 1 and 1/2 cups (serves 12)
Ratings (4)

If you're looking for a vegan peanut butter frosting recipe (or icing recipe, as some people prefer to call it!) that the kids will love but one that won't ruin their teeth and make them bounce off the walls, try this refined sugar-free peanut butter cake frosting recipe. It's made from nothing more than peanut butter, maple syrup and flour, although one recipe tester suggested thinning it out with a bit of soy milk. Up to you! And yes, maple syrup does contain plenty of natural sugar, but for vegans looking to avoid any kind of refined sugar, this recipe is perfect. 

This peanut butter frosting or icing recipe is both vegetarian and vegan and goes great with a vegan chocolate cake or even a vegan chocolate peanut butter cake! Or, might I suggest you try using this vegan peanut butter frosting to top off these low-calorie and fat-free and reduced sugar chocolate brownies? Yum!

This peanut butter icing recipe is perfect for a vegan birthday cake for the kids or for topping off homemade vegan cupcakes. Or, you might want to also try this Sugar-free Chocolate Frosting Recipe.

One person who tested out this peanut butter frosting found it to be a bit too thick, so she added a bit of soymilk to thin it out which worked quite well, so you can always try that to thin out the consistency a bit if you need. 

What You'll Need

  • 1 cup peanut butter (creamy peanut butter or smooth will be best, not chunky)
  • 1/2 cup maple syrup
  • 1/2 cup flour

How to Make It

  1. Whisk or blend together all ingredients until smooth and creamy.
  2. If you have an electric stand mixer, this is a good time to use it in order to get all the ingredients perfectly smooth and creamy.
  3. You may also want to consider doubling the recipe. 

Recipe note:

  • To make this recipe truly sugar-free and refined sugar-free, make sure that the peanut butter you are using has no added sugar. 
  • Need it to be gluten-free? Just swap out the regular flour for your favorite gluten-free flour instead. 

    Recipe tips:

    • This refined sugar-free peanut butter frosting will be, for several reasons, a bit heavier and denser than versions made with powdered sugar and maple syrup. The secret to getting it as light and fluffy as possible will be to add some air by "aerating" the mixture by beating it as much as possible; even more than you think it needs!
    • Depending on what you are using it for, you may want to add a bit of liquid - soy milk, as suggested, or just a dash of vanilla - to make it a bit thinner and easier to spread on your cake as needed.