If you love the rich, nutty flavor of peanut butter but want a healthier twist that still satisfies your sweet tooth, then this Protein Peanut Butter Cookies Recipe is about to become your new best friend. These cookies combine the creamy goodness of peanut butter with a boost of protein, making them perfect for a post-workout snack or a guilt-free treat anytime you crave something sweet. They’re simple to make, packed with flavor, and have a delightful chewy texture that will keep you reaching for more. Trust me, once you try this recipe, you’ll wonder how you ever enjoyed peanut butter cookies any other way!

Ingredients You’ll Need
These ingredients are surprisingly straightforward yet each one plays a crucial role in making these cookies absolutely delicious. From the powdered peanut butter that gives a concentrated nutty flavor without extra oil, to the baking sweetener which ensures the perfect sweetness, every component is essential.
- Powdered peanut butter (â…” cup): This is the star ingredient, providing that classic peanut butter taste with less fat.
- Water (â…“ cup): Needed to rehydrate the powdered peanut butter into a smooth paste, making the dough workable and moist.
- Baking sweetener of choice (½ cup): Use your favorite low-carb or natural sweetener to balance the peanut flavor without overpowering it.
- Egg (1): Acts as a binder and adds a bit of richness to the dough.
- Pinch of salt: Enhances all the flavors and balances the sweetness beautifully.
How to Make Protein Peanut Butter Cookies Recipe
Step 1: Preheat Your Oven
Start by heating your oven to 350°F (180°C) and lining a baking tray with parchment paper. This preparation ensures your cookies bake evenly without sticking, making cleanup a breeze.
Step 2: Mix the Peanut Butter
In a large bowl, combine the powdered peanut butter with water and stir until a thick, smooth paste forms. This step is key to getting that rich peanut butter base that’s light but still full of flavor.
Step 3: Add Sweetener and Salt
Next, add your baking sweetener and a pinch of salt to the peanut butter paste. Stir until everything is well integrated. The salt may be small in quantity, but it’s mighty in enhancing the cookie’s taste, making every bite pop.
Step 4: Incorporate the Egg
Crack in the egg and mix thoroughly until the dough is smooth. It might be a little runny at first, but that’s exactly how it should be—it will bake up into soft, chewy cookies.
Step 5: Form the Cookies
Drop spoonfuls of the cookie dough onto your prepared baking tray. You can shape them a bit if you like, but keep in mind that these cookies won’t spread much during baking, so the size you place is roughly the size you’ll get.
Step 6: Bake to Perfection
Bake your cookies for 10 to 13 minutes until they’re just set. They will feel soft at first but will firm up nicely as they cool down. This gentle baking time keeps them tender and chewy, just right for a healthy snack.
Step 7: Cool and Set
Allow the cookies to cool on the tray for 5 minutes, then pop them into the refrigerator for at least 40 minutes. This chilling time is crucial—it helps the cookies develop that perfect chewy texture that makes this Protein Peanut Butter Cookies Recipe truly special.
How to Serve Protein Peanut Butter Cookies Recipe

Garnishes
Want to take your cookies to the next level? Sprinkle a few dark chocolate chips or crushed roasted peanuts on top before chilling to add extra texture and flavor. A light drizzle of melted dark chocolate over the cooled cookies is also an irresistible option for an elegant finish.
Side Dishes
These cookies pair wonderfully with a glass of cold milk or a warm cup of coffee or tea. You can also enjoy them alongside a simple bowl of fresh fruit for a balanced and satisfying snack.
Creative Ways to Present
For a fun twist, serve these cookies as part of a protein-packed dessert platter featuring Greek yogurt, berries, and nuts. Or sandwich two cookies together with a spoonful of your favorite nut butter or protein spread for an exciting treat that you can’t resist.
Make Ahead and Storage
Storing Leftovers
Store any leftover Protein Peanut Butter Cookies in an airtight container at room temperature for up to three days. To maintain the best texture, keep them in the fridge if your kitchen is warm, ensuring they stay chewy but not too soft.
Freezing
These cookies freeze beautifully. Place cooled cookies in a freezer-safe container or bag, separated by parchment paper to prevent sticking. They’ll keep well for up to two months, making it easy to have a healthy snack ready anytime you want.
Reheating
Simply thaw frozen cookies at room temperature or warm them for 10 to 15 seconds in the microwave for that freshly-baked feel. Reheating revives their soft and chewy texture, making them taste like they just came out of the oven.
FAQs
Can I use natural peanut butter instead of powdered peanut butter?
While natural peanut butter works in many recipes, this Protein Peanut Butter Cookies Recipe relies on powdered peanut butter to keep the cookies light and lower in fat. Using natural peanut butter might result in a denser and greasier cookie.
What baking sweeteners work best?
You can use any baking sweetener that you prefer, such as erythritol, stevia blends, coconut sugar, or monk fruit sweetener. Just make sure it’s suitable for baking and adjust the quantity according to sweetness level.
Are these cookies gluten-free?
Yes! This Protein Peanut Butter Cookies Recipe contains no flour or gluten-containing ingredients, making it a great option for those avoiding gluten.
Can I add mix-ins like chocolate chips or nuts?
Absolutely! Stirring in some sugar-free chocolate chips, chopped nuts, or even shredded coconut before baking can add delightful texture and flavor variations.
How long do these cookies keep fresh?
When stored properly in an airtight container, these cookies will stay fresh for up to three days at room temperature or about a week in the refrigerator.
Final Thoughts
This Protein Peanut Butter Cookies Recipe is a delicious way to enjoy a classic treat with a healthy boost. The ease of making them combined with their incredible flavor and chewy texture makes them perfect for any occasion. I wholeheartedly encourage you to give them a try—you might just find your new favorite cookie!
Print
Protein Peanut Butter Cookies Recipe
- Prep Time: 7 minutes
- Cook Time: 13 minutes
- Total Time: 27 minutes
- Yield: 11 cookies
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Low Fat
Description
These Protein Peanut Butter Cookies are a healthier, high-protein twist on the classic treat, made with powdered peanut butter and a baking sweetener. They are quick to prepare, low in fat, and perfect for a satisfying snack or dessert that fits into a balanced diet.
Ingredients
Dry Ingredients
- â…” cup powdered peanut butter (PB2 or similar)
- ½ cup baking sweetener of choice
- Pinch of salt
Wet Ingredients
- â…“ cup water
- 1 egg
Instructions
- Preheat the Oven: Preheat your oven to 350°F (180°C) and line a baking tray with parchment paper to prevent sticking.
- Mix the Peanut Butter: In a mixing bowl, combine the powdered peanut butter with the water, stirring well until you achieve a thick peanut butter paste.
- Add Sweetener & Salt: Stir in your choice of baking sweetener and a pinch of salt until the mixture is thoroughly combined.
- Incorporate the Egg: Crack in the egg and mix until the batter is smooth; note that the dough will be slightly runny at this stage.
- Form the Cookies: Using a spoon, drop spoonfuls of dough onto the prepared baking tray, shaping them into cookie forms. These cookies do not spread much during baking.
- Bake: Place the tray in the oven and bake for 10-13 minutes. The cookies will be soft once out of the oven but will firm up as they cool.
- Cool & Set: Allow the cookies to cool on the tray for 5 minutes before transferring them to the refrigerator for 40 minutes to develop their best chewy texture.
Notes
- You can substitute the baking sweetener with your preferred low-calorie sweetener such as erythritol or stevia blends.
- For a nut-free option, powdered peanut butter can be replaced with powdered almond or soy butter, if preferred.
- Ensure not to overbake as cookies will firm up as they cool, preserving a chewy texture.
- Refrigeration is key for optimal texture; skipping this step may result in softer cookies.
- Store cookies in an airtight container in the refrigerator for up to a week.

