Keto Peanut Butter Brownies
- Keto Upgrade
- Jun 6
- 6 min read
I love brownies and I love chocolate and peanut butter even more so I had to figure out a delicious brownie that combined chocolate and peanut butter. With owning a bakery and shipping these brownies, I had to incorporate the peanut butter into the brownie instead of making a peanut butter frosting or topping. But I do have a peanut butter mousse I have topped my brownies with and you can also make a peanut butter buttercream frosting.
Low Carb Peanut Butter Mousse Recipe-https://youtu.be/XDNBtM6eJs8
Keto Buttercream Frosting- https://youtu.be/xQQasWnk_sM

For the video I tried just mixing all the ingredients like a box brownie mix, all the dry and sweetener then adding melted butter and eggs and whipping. But you never know what will happen with our keto ingredients! So I need to do some more experiment with doing it that way. Check out the video if you want to see what happens, it's crazy!-https://youtu.be/2ampmEDRiNM

The recipe starts with butter and a lot of sweetener because brownies normally have a ton of sugar in them. I will be working on cutting down the sugar alcohols in this recipe but you need quite a bit of sweetener since there is quite a bit of unsweetened cocoa powder in the recipe. I use a powdered monkfruit/erythritol blend and allulose. The allulose keeps the brownie moist in the middle for a fudgy brownie texture. But it will make the brownies brown if you over bake them. I always suggest under baking rather than taking them too far but I don't mind a little goo in the middle if I happen to not bake them enough.
For the dry ingredients I use my usual protein powder and coconut flour then of course unsweetened cocoa powder. I made the original recipe with Isopure Dutch Cocoa Whey Protein but also tried perfect keto and keto chow chocolate protein powders and they worked as well. I will be experimenting with using just unflavored whey and adding a little bit extra cocoa powder and sweetener to the recipe. Then the xanthan gum which you need to give a more gluten feel to the brownie. I have had so many different strengths of xanthan gum over the 5 years of keto baking that it makes my job very difficult. I went from 1 teaspoon to upping it to 1.5 teaspoons and now I'm down to a 1/2 teaspoon for the same recipe. I use Anthony's brand xanthan gum at the moment and it has been pretty consistent but keto products can literally change at any time. If you use keto chow you probably don't need to add any xanthan gum because it contains a higher amount of gums than other protein powders.
For the peanut butter add-in, I made a white chocolate peanut butter ganache to swirl into the batter. I didn't want to depend on keto peanut butter chips which are usually seasonal. So I came up with a recipe using white chocolate chips which are usually readily available from one brand or another. I've been sticking with choc zero white chocolate chips. If you use another brand you may need more heavy cream because choc zero white chocolate is pretty soft in texture compared to many other keto brands chips.
I forgot to keep a few tablespoons of batter to top the ganache. After layering on the ganache I dollop the batter around, spread out a bit then do the steps below, swirling in the opposite direction.

These are available for purchase! If you are in AR, AL, CT, DE, FL, GA, IN, IA, IL, KA, KY, LA, ME, MA, MD, MI, MN, MO, MS, NC, ND, NE, NJ, NH, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, or WV, feel free to check out my website to place an order for some High Protein/Low Carb White Bread or some delicious keto brownies or keto breakfast Baked Goods- Sugarswapbakeshop.com or click the link: https://www.ketoupgrade.info/shop-1
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Keto Fudgy Peanut Butter Brownie Recipe
16 Tbs./1 Cup/8oz- Salted Butter (softened)
160 g/about 1 Cup- Allulose (can use a different sweetener but allulose is less sweet than others and gives moisture)
144 g/about 1 & 1/4 Cups- Powdered Monkfruit/erythritol Sweetener (Any powdered erythritol will work)
4- Eggs (room temp.)
1 Tbs.- Vanilla Extract
62 g/1/2 Cup+2 Tbs.- Chocolate whey Protein Isolate (Isopure and perfect keto work well about 2 scoops)
30 g/1/4 Cup Coconut Flour
48 g/1/2 Cup- Dutch Cocoa Powder
1/2 tsp. Anthony's Xanthan Gum
Peanut Butter Ganache
1.5oz./3 Tbs. Keto White Chocolate Chips
4oz./1/2 Cup+3 Tbs.- Creamy Natural Peanut Butter
2oz./1/4 Cup- Heavy Cream
Instructions:
Preheat oven to 350 degree, spray and line a 9x13 pan with parchment paper at least along the long side (picture above)
With a hand mixer or a stand mixer fitted with a whip attachment whip the soft butter and sifted sweetener together for 5 minutes, scraping down the bowl a few times
While that is whipping weigh/measure, sift and whisk dry ingredients together
Measure out the peanut butter ganache into a microwave safe dish and heat on 50% power for about 45 second, let sit and melt while you finish the brownie batter
Once butter and sweetener are fluffy, add one room temperature egg at a time scraping after each addition then add the 1 tablespoon of vanilla extract
Add the dry ingredients into the mixing bowl and mix to combine, scrape down a few times to make sure all the dry ingredients are combined
Whip on high speed until well combined and is a little lighter in color, whisk the peanut butter ganache until smooth, if all the chips aren't melted, warm for a few more seconds
Spread all but a few tablespoons of the batter evenly into the parchment lined 9 x 13 pan making sure it isn't higher in the middle, with a spatula cut a swirl into the batter that you can fill with the ganache, layer on the ganache and spread evenly
Dollop the remaining batter around the top and spread out and swirl the ganache in the other direction
Bake for 18-24 minutes, spinning half way threw, until just set in the middle, let cool completely on the counter before slicing, can leave in the pan to cut or run a spatula around the short sides and lift out with the parchment paper once cool, can easily get 16 brownies, I sell them cut into 12
Can freeze in a ziplock freezer bag for a month or keep in the refrigerator for a few weeks. I would only keep it on the counter for a few days, especially if it's hot out
They are best at room temperature or slightly warmed up (especially with keto ice cream on top!) My favorite keto ice cream recipe- https://www.youtube.com/watch?v=SdGEDdZQ30s
But I have many many flavors on my YouTube channel YouTube.com/Ketoupgrade.
Macros: 1/12
290 Calories
26g Fat
19g Total Carbs
5g Fiber
12g Sugar Alcohol
2g Net Carbs
10g Protein
Macros:1/16
220 Calories
19g Fat
15g Total Carbs
4g Fiber
9g Sugar Alcohol
2g Net Carbs
7g Protein
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