Flourless Peanut Butter Protein Brownies

4.94 from 48 votes
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These flourless peanut butter protein brownies are decadent and have 9 grams of protein per brownie. Our goal was to make tasty brownies that were tender and super fudgy. We accomplished that goal!

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Chocolate brownies on a cutting board with peanut butter.
The logo for protein desserts on a red background.

THIS GIVEAWAY IS CLOSED: These Flourless Peanut Butter Protein Brownies are part of our 2024 Protein Dessert Series. If you make this recipe, snap a photo and upload it to the comment section to enter for a chance to win a lululemon Chargefeel Workout Shoes. You’ll also be entered into a greater giveaway for this series — a $500 lululemon shopping spree! Winners will be chosen on January 31.

I don’t know about you, but when we have a brownie, we want the brownie to be fudgy, moist, and still warm when we eat it. These flourless peanut butter protein brownies use cocoa powder and protein powder in place of flour and have pockets of fudgy melted chocolate in every bite.

What is in protein brownies?

Make sure to scroll all the way down to the recipe card to get the full ingredient list and written recipe.

These flourless peanut butter protein brownies get their added protein from protein powder and peanut butter. Each brownie has 12g of added protein per brownie.

The high protein ingredients are accompanied by classic brownie ingredients like brown sugar, eggs, chocolate chips, and baking powder.

The ingredients for a chocolate cake are shown in bowls on a white background.

Substitues & Variations

  • The bake time may vary depending on the oven, what pan is used, and whether or not you are baking at altitude.
  • If you know one side of your oven bakes hotter than the other, turn the baking pan in the oven halfway through the baking time.
  • Feel free to add other delicious brownie mix-ins.
  • We highly recommend serving these brownies warm with a scoop of ice cream or protein ice cream.
A bowl with cocoa powder and a whisk.
A brownie in a baking pan with chocolate chips.

Storage

Let these brownies cool completely before slicing them into squares and storing them in an air-tight container for 3-5 days. If you don’t let the brownies cool before storing them, they will become moist.

Freezer Directions

Let the brownies cool and then store them in a freezer-safe container. Freeze them for up to 3 months.

A plate of chocolate brownies with ice cream and a scoop of ice cream.

Serving Suggestions

Serve these delicious brownies with a scoop of ice cream. We also recommend serving them alongside other delicious desserts if you are hosting a party. Try these protein snickers, protein puppy chow, or peanut butter protein balls.

4.94 from 48 votes

Flourless Peanut Butter Protein Brownies

These flourless peanut butter protein brownies are easy to whip up, chocolatey, and has 9 grams of protein per serving.
Prep: 20 minutes
Cook: 40 minutes
Total: 1 hour
Servings: 12
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Ingredients 

Dry

Wet

  • 1 cup unsalted all-natural peanut butter, drippy
  • ½ cup maple syrup
  • 3 tablespoons packed brown sugar
  • 1 teaspoon vanilla extract
  • 2 large eggs
  • ½ cup plain, unsweetened almond milk*
  • ½ cup chocolate chips, melted
  • 3 tablespoons melted coconut oil

Instructions 

  • Preheat the oven to 350ºF and line a light-colored 8×8-inch pan with parchment paper.
  • Add all of the dry ingredients into a mixing bowl and mix to combine. Set aside.
    A bowl with cocoa powder and a whisk.
  • Next, cream the peanut butter, maple syrup, brown sugar, and vanilla together and mix until combined and smooth.
    Peanut butter in a bowl with a spoon.
  • Add the eggs and almond milk and stir to combine.
  • Add the dry ingredients to the wet and mix until well combined. Add the coconut oil and stir again.
  • Fold the melted chocolate into the batter. Do not over-mix the melted chocolate in so it is combined with the batter, fold it in so there are fudgy pockets throughout the batter.
  • Transfer the batter into the line-caked pan. Option to top the batter with more chocolate chips.
    A brownie in a baking pan with chocolate chips.
  • Bake the brownies for 35-40 minutes or until the center of the brownies is almost baked. You want there to be a little bit on the toothpick when you check the middle of the brownie as the brownie will continue to cook when it is removed from the oven.
  • Allow the brownies to cool for 3-5 minutes before gently loosening the sides of the brownie with a knife and then lifting the parchment paper. Transfer the brownies to a cooling rack.
    Chocolate brownies on a cutting board with peanut butter.
  • Serve warm with ice cream (they will fall apart) or let them cool completely before slicing them into brownie squares.
    A plate of chocolate brownies with ice cream and whipped cream.

Tips & Notes

  • The bake time may vary depending on the oven, what pan is used, and whether or not you are baking at altitude.
  • If you know one side of your oven bakes hotter than the other, turn the baking pan in the oven halfway through the baking time.
  • Feel free to add other delicious brownie mix-ins.

Watch It

[adthrive-in-post-video-player video-id=”VNQ90L4d” upload-date=”2024-01-08T18:26:29.000Z” name=”Flourless Peanut Butter Brownies ” description=”These flourless peanut butter protein brownies are decadent and have 9 grams of protein per brownie. Our goal was to make tasty brownies that were tender and super fudgy. We accomplished that goal!” player-type=”default” override-embed=”default”]

Nutrition

Calories: 329 kcal, Carbohydrates: 33 g, Protein: 9 g, Fat: 20 g, Fiber: 3 g, Sugar: 20 g

Nutrition information is automatically calculated, so should only be used as an approximation.

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Photography: photos taken in this post are by Ashley McGlaughlin from The Edible Perspective.

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About Linley Hanson

Linley has played an important role in the success of Fit Foodie Finds over the last 10 years. She is an incredible home cook and has an amazing palate. She is the brain behind our recipes and has spent thousands of hours developing, testing, and perfecting the delicious meals you see here at Fit Foodie Finds.

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51 Comments
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Lisa C
January 30, 2024 8:20 pm

5 stars
I was going to drizzle peanut butter on top, but couldn’t wait to dig in. Subbed butter for the coconut oil. They didn’t last the day at the office!

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Mel Meleney
January 30, 2024 5:55 pm

5 stars
Great recipe! I love how filling these brownies are with the PB and protein powder. I’ve been eating them for breakfast before work and they’re great! Mine came out a little bit dry (baked 35 minutes), maybe pulling them out a few minutes early would have helped.

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Ashley J
January 30, 2024 11:39 am

5 stars
Well this is a piece of chocolate heaven! light and airy and heavy on fudgey goodness.

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Kristin
January 30, 2024 10:05 am

5 stars
Very chocolatey but great with a side of some frozen yogurt! Couldn’t even taste the protein powder. Everyone in my family enjoyed them!

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Ashley
January 30, 2024 2:44 am

5 stars
I love how these came out and how they have extra protein! I purposely underbaked them a little to make them more fudgey ๐Ÿ™‚

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Claire
January 29, 2024 10:33 pm

**re-posting my review from 1/22 since I realized my photo failed to upload:

These turned out super tasty! Dense, moist & cakey! I agree with previous comments that ice cream would pair really well with these.

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Victoria
January 29, 2024 8:35 pm

5 stars
Wow these are so good!I enjoyed mine with a glass of red wine. They are a little fudgy yet fluffy. Iโ€™ll be sprinkling a little bit of flakey sea salt on my new slice!

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Vanessa
January 29, 2024 8:26 pm

5 stars
These were really soft and super chocolaty.

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Madi
January 29, 2024 7:34 pm

5 stars
Okay the first bite something seemed offโ€ฆI think my brain was feeling tricked because it looks like such a traditional brownie. HOWEVER my taste buds mustโ€™ve adjusted and holy bananas are these good! Couldnโ€™t wait to get home today to snack on one!

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Jen
January 29, 2024 6:50 pm

5 stars
Iโ€™ve been wanting to make these brownies all month, so glad I finally did. Followed the recipe exactly (except I topped with powdered sugar) and they turned out beautifully!

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