High Protein Blondies
These High Protein Blondies are soft, fudgy, and loaded with dark chocolate, and they stack protein from three sources: blended cottage cheese, all-natural peanut butter, and vanilla protein powder! No refined sugar and no equipment beyond a blender. One bowl, one pan. Each bar has 17 grams of protein!
What makes these stand apart from other protein blondie recipes is the cottage cheese base. Blended smooth, it bakes into a moist bar with no dry or chalky texture. Stacking three protein sources means each bar delivers a higher count than recipes relying on powder alone!
What Makes These Blondies High-Protein?
These High Protein Blondies stack three protein sources in one recipe: two cups of blended cottage cheese, one cup of all-natural peanut butter, and two scoops of vanilla protein powder. Together, they deliver a substantial protein boost per bar without any protein powder aftertaste, dry texture, or artificial ingredients.
The cottage cheese adds creaminess and moisture that most protein blondie recipes lack.
Ingredients
- 2 cups blended cottage cheese
- 1 cup gluten free flour, see note
- 1 cup all natural creamy peanut butter
- 2 scoops vanilla protein powder
- ½ cup coconut sugar or maple sugar
- 1 tsp vanilla extract
- ½ cup dark chocolate chips
What Each Ingredient Does
Blended cottage cheese
Cottage cheese must be blended first. Stirred in whole, it creates a lumpy, grainy texture. Blended smooth, it produces a thick, creamy base that contributes moisture, density, and protein with no detectable dairy flavor. Greek yogurt works as a direct substitute at the same amount. Use a thicker brand either way.
All-natural peanut butter
Use peanut butter made from only peanuts and salt. The natural oils keep every bite moist and rich while the protein adds to the overall count. Conventional peanut butter contains stabilizers and added sugar that alter the batter texture. Stir before measuring to incorporate any separated oils.
Vanilla protein powder
Two scoops add a significant protein boost and gentle vanilla sweetness. Whey or whey-casein blend powders produce the softest texture. Plant-based protein works too but produces a denser bar. Avoid powders with a strong artificial sweetener flavor since it carries through into the finished bar.
Coconut sugar or maple sugar
Both provide natural sweetness without refined sugar. Coconut sugar has a mild caramel undertone; maple sugar delivers slightly more pronounced warmth. Either works at the same amount and can be reduced to one-third cup without affecting structure.
Gluten free flour and chocolate chips
A 1:1 gluten free blend holds the dense batter together during baking. All-purpose flour works as a direct substitute. The chocolate chips melt during baking, creating gooey pockets of chocolate throughout every bar.
How to Make Step by Step
First, preheat your oven to 350 degrees Fahrenheit. Line an 8 inch by 8 inch square pan with parchment paper.
Blend the cottage cheese in a food processor or blender until creamy.
In a large mixing bowl, add the blended cottage cheese, gluten free flour, peanut butter, protein powder, coconut sugar, and vanilla. Stir together.
Fold in the chocolate chips.
Transfer this batter to the lined pan. Smooth into an even layer.
Bake for 21 to 24 minutes, or until a toothpick inserted comes out with only a few moist crumbs.
Finally, remove these High Protein Blondies from the oven. Cool for at least 4 hours before slicing and serving.
Why the batter looks like cheesecake batter
Traditional blondie batter is thin because it relies on melted butter and eggs. This batter uses blended cottage cheese and peanut butter as its base, both of which are thick and protein-rich. As a result, the batter looks much thicker than expected, similar to cheesecake filling rather than a typical bar batter.
This thickness is exactly right. It produces the dense, fudgy texture that makes these High Protein Blondies satisfying rather than the airy crumb of a standard blondie.
Tips for the Best Results
Blend the cottage cheese until completely smooth
Even a few curds create a grainy texture. Blend for at least 30 seconds after it appears smooth. The result should look uniform with no lumps.
Use all-natural peanut butter only
Conventional peanut butter contains stabilizers and added sugar that alter both texture and flavor. Use a brand made from only peanuts and salt. The natural oils keep the bars moist for all four days of storage.
Do not overbake
The center should look slightly gooey when you pull the bars out. The protein-rich batter sets during cooling. A toothpick that comes out completely clean means dry bars, not fudgy ones.
Store in the fridge for meal prep
These bars keep refrigerated for up to 4 days and improve overnight. Wrap individual bars in plastic wrap for a grab-and-go post-workout snack throughout the week.
Substitutions
| Original | Substitute | Notes |
|---|---|---|
| Cottage cheese | Thick Greek yogurt (same amount) | Slightly tangier, equally moist |
| Gluten free flour | All-purpose flour (1:1) | Direct swap |
| Peanut butter | Almond or cashew butter | Milder flavor, same structure |
| Coconut sugar | Maple sugar or light brown sugar | Same amount |
| Dark chocolate chips | Dairy-free chocolate chips | Makes bars fully dairy free |
Storage
Refrigerator: Store High Protein Blondies in an airtight container for up to 4 days. Texture improves overnight as the bars firm up.
Freezer: Wrap individual High Protein Blondies tightly and freeze for up to 2 months. Thaw overnight in the refrigerator or 30 minutes at room temperature.
Frequently Asked Questions
Yes. Greek yogurt works as a direct 1:1 substitute. Use a thick strained variety like Fage Total or Oikos Triple Zero. The bars will be slightly tangier and a touch softer than the cottage cheese version but equally moist and high in protein.
A whey or whey-casein blend produces the softest, most blondie-like texture. Casein protein also bakes into a particularly moist result. Plant-based protein works but produces a slightly denser bar. Avoid powders with a strong artificial sweetener flavor since it carries through into the finished bar.
Blended cottage cheese, peanut butter, and protein powder together create a much denser batter than a standard blondie. It should look like thick cheesecake batter. If it seems hard to stir, warm the peanut butter in the microwave for 20 seconds before adding it to the bowl.
Yes. Reduce to one-third cup without affecting the structure. The vanilla protein powder and chocolate chips both contribute sweetness, so the full half cup may feel sweeter than needed for some people.
Yes. These bars keep refrigerated for up to 4 days and improve in texture overnight. Wrap individual bars in plastic wrap or store in a divided meal prep container for an easy post-workout snack or high-protein treat throughout the week.
You May Also Like
- Almond Croissant Blondies
- Brown Butter Blondies
- Banana Blondies
- Peanut Butter Blondies
- Cottage Cheese Brownies
If you make this High Protein Blondies recipe, I would really appreciate a review! You can find me on Instagram, Facebook, and Pinterest. Join my exclusive Facebook Group for a behind the scenes look. I would love for you to follow along! For more ideas, check out these Dessert Recipes.
Get the Recipe: High Protein Blondies
Ingredients
- 2 cups blended cottage cheese
- 1 cup gluten free flour, see note
- 1 cup all natural creamy peanut butter
- 2 scoops vanilla protein powder
- ½ cup coconut sugar, or maple sugar
- 1 tsp vanilla extract
- ½ cup dark chocolate chips
Instructions
- First, preheat your oven to 350 degrees Fahrenheit. Line an 8 inch by 8 inch square pan with parchment paper.
- Blend the cottage cheese in a food processor or blender until creamy.
- In a large mixing bowl, add the blended cottage cheese, gluten free flour, peanut butter, protein powder, coconut sugar, and vanilla. Stir together.
- Fold in the chocolate chips.
- Transfer this batter to the lined pan. Smooth into an even layer.
- Bake for 21 to 24 minutes, or until a toothpick inserted comes out with only a few moist crumbs.
- Finally, remove from the oven. Cool for at least 4 hours before slicing and serving.
Notes
- You can use Greek yogurt in place of the cottage cheese if desired. Use a thicker brand.
- Use peanut butter made from only peanuts and salt.
- The batter will somewhat resemble cheesecake batter. It is thick.
- Do not bake too long. The bars should look a little gooey.
- Wait until they are fully cooled before slicing into. Otherwise, things can be a little messy.
- Store leftovers in the fridge for up to 4 days.