Peanut Butter Blondies

This is a flourless chewy and gooey, utterly irresistible peanut butter blondie recipe!

They are rich and decadent triple peanut butter blondies: with peanut butter, peanut powder and roasted peanuts, this recipe for all the peanut lovers out there!

Holding a small plate with slices of keto peanut butter brownies.

These peanut butter blondies are super easy and fast to make, keto-friendly, gluten-free and high in protein!

A stack of gooey peanut butter brownies.

The mix of peanut butter and whey makes a super thick and sticky caramel-like topping that grows harder as it dries and sets.

If you don’t eat the whole brownie straight away, you’ll see how after some time it gets the chewy texture of caramel candy. It’s to die for!

Ingredient details

These are the main ingredients you’ll need for this easy peanut butter brownies recipe:

You’ll find the exact ingredient quantities with automatic scaling and conversions on the printable recipe summary at the bottom of this post.

Gathered ingredients.

For the triple peanut butter brownies:

  • Natural smooth peanut butter – the ones that need to be stirred.
  • Peanut butter powder – this is the dehydrated and defatted peanut butter. Be careful, some brands have sugar added. This one is keto-friendly!
  • Salted butter – If using unsalted, just add a pinch of salt. Use grass-fed butter for the best taste!
  • Sugar substitute: use a powdered keto sweetener for better texture. You can also make our own powdered sweetener from granulated.
  • Large eggs, vanilla extract and baking powder.

For the peanut butter caramel topping:

  • (MORE!) smooth peanut butter
  • Whey protein powder – either unflavored or vanilla
  • Crushed roasted peanuts – add a sprinkle of crunchy salted peanuts to contrast with the sweet topping
Bitten slice of chewy peanut butter brownie.

The whey protein is what gives the topping the delicious stickiness. Either whey isolate or concentrate work. Isolate has slightly less carbs and it’s the one I use.

I always buy huge amounts of unflavored whey isolate so I use in many recipes (and everyday shakes and such) and add in any flavors I want.

So I made this peanut butter brownie topping with unflavored whey, and added vanilla extract and liquid sweetener (monk fruit).

If you use vanilla flavored whey protein, you might not need to add these.

How to make

Peanut butter topping

These irresistible gooey triple peanut butter brownies are even better with this sticky and crunchy peanut butter topping!

We love this topping made with whey protein and peanut butter! It’s the same recipe I used to frost our favorite keto peanut butter and chocolate cupcakes.

Mixing whey and water.

1. Mix the whey protein powder with water or low-carb milk, adding liquid bit by bit, until it’s creamy and free of clumps.

Add vanilla and sweetener if your whey protein is unflavored.

Peanut butter caramel topping ready.

2. Add the peanut butter and mix until it reaches a very thick caramel consistency, that falls of the spoon in ribbons.

Try for taste, and add more vanilla or sweetener if you like.

Keto peanut butter brownies

Start by preheating your oven to 350 °F (175 °C). Line a 8×8-inch pan with parchment paper and grease it with some butter, olive oil or coconut oil.

Get a large microwavable bowl where you can mix all the ingredients for the batter so you can do the whole recipe in one bowl only (not like I did!)

In this bowl, add the butter and peanut butter and let’s start!

Mixing melted butter and peanut butter.

1. Melt together the peanut butter and butter in the microwave and mix them well to combine.

Natural peanut butter can get some hard lumps, try and smooth these out as you mix.

All ingredients in a bowl.

2. Add the eggs, vanilla extract, keto sweetener, baking powder and peanut butter powder to the melted butter and peanut butter.

Mixing batter with hand mixer.

3. Mix all ingredients until you get a uniform and creamy batter.

An electric hand mixer makes it faster but you can also just mix it by hand with a sturdy spatula.

Transferring batter to pan.

4. Transfer the keto brownie batter into a 8-inch square pan lined with parchment paper.

Smooth out the top and take it into the oven at 350 °F (175 °C).

Freshly baked brownie in pan.

5. Bake the brownies for 11-12 min, and remove from the oven when they are just about set in the middle.

Don’t wait too long or the peanut butter brownies will dry out and become cakey.

Spreading peanut butter topping.

6. Wait until it’s cooled down, and turn the brownie onto a plate.

Spread the peanut butter topping, and sprinkle some crushed salted peanuts to give it a delicious salty and sweet crunch.

Peanut butter blondies topped with peanut butter and toasted crushed peanuts.

Storage and freezing

These peanut butter brownies can be kept at room temperature or refrigerated for up to 5 days. Keep them in an airtight container so they won’t dry out.

To freeze the leftovers (what?) separate the slices with parchment paper to prevent them from sticking together.

Place them in a freezer bag (slices wrapped in paper) or piled up in an airtight container (with parchment between layers) and freeze it for up to 3 months.

Holding a slice of keto peanut butter brownie.

Brownies vs blondies

I wasn’t sure if I should call these brownies or blondies. I was inclined towards blondies, as I’m with the people who think blondies are brownies without chocolate.

But I know some believe that blondies are called so because they are made with brown sugar. I don’t think that makes any sense, as if made with brown sugar these should be definitely called brownies, it’s only logical.

By the way, if brownies were made with golden sugar, then maybe they could be called blondies. Although I’d go with goldies.

What do you think? What side of the brownie vs blondie debate are you on? Share with us in the comments!


Holding a small plate with slices of keto peanut butter brownies.

Keto Peanut Butter Blondies

5 from 2 votes
You'll love these irresistible gooey triple peanut butter blondie brownies with a sticky and crunchy topping! They are super easy and fast to make, flourless, keto, sugar-free and gluten-free!
Author: Pris Frank
Prep Time 10 minutes
Cook Time 11 minutes
Course Dessert
Cuisine American
Servings 16 brownies

Ingredients
 

Topping

Brownies

Instructions
 

Topping

  • Mix 2/3 cup whey protein isolate with 1/3 cup water or low-carb milk, adding the liquid bit by bit, until it's creamy and free of clumps.
  • Add the 1/4 cup smooth peanut butter and mix until it reaches a very thick caramel consistency, that falls of the spoon in ribbons. Set aside.

Brownies

  • Preheat the oven to 350 °F (177 °C) and line a 8-inch square pan with parchment paper greased with butter or coconut/olive oil.
  • Melt together the 1/2 cup smooth peanut butter and 1/4 cup salted butter in the microwave and mix them well to combine.
  • Add the 2 large eggs, 1 teaspoon vanilla extract, 1/2 cup powdered sweetener, 1 teaspoon baking powder and 1/2 cup powdered peanut butter to the melted butter and peanut butter mix.
  • Mix all ingredients until you get a uniform and creamy batter. You can use a hand mixer or a sturdy spatula.
  • Transfer the batter into the prepared 8-inch square pan. Smooth out the top and take it into the oven at 350 °F (177 °C)
  • Bake the brownies for 11-12 min, and remove from the oven when they are just about set in the middle.
  • Wait until it's cooled down, and turn onto a plate. Spread the peanut butter caramel topping, and sprinkle with some crushed salted peanuts.

Notes

If you use vanilla flavored whey protein for the topping,  you might not need to add the extra vanilla extract or liquid sweetener. You can try it for taste and add if necessary.

Nutrition

Serving: 1Calories: 140kcalCarbohydrates: 4gProtein: 8gFat: 11gFiber: 1gSugar: 2gNet Carbohydrates: 2g
Tried this recipe?Leave a comment and let us know how it was!

Copyright Pris Frank for LikeHotKeto. Please DO NOT SCREENSHOT OR COPY/PASTE recipes to social media or websites. We’d LOVE for you to share a link to this recipe instead 🙂 Try the easy sharing buttons below!

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating




LikeHotKeto