
Combining creamy peanut butter and fudgey chocolate frosting, these irresistible peanut butter bars are divine and GLUTEN FREE. The blend of the slightly under baked texture of the bar and the delicious fudge frosting creates a treat that will have you reaching for seconds. Whether you enjoy the classic peanut butter and chocolate pairing or simply are craving a yummy snack, these bars are sure to hit the spot.
These peanut butter bars are not just delicious, but also gluten-free. When baking gluten-free, it’s important to use gluten-free oats, as not all oats are gluten free. I prefer using rolled oats to add more texture to the bars. Whether you prefer creamy or crunchy peanut butter, both work well in this recipe. Personally, I favor crunchy peanut butter because I like the chunks of peanuts. I have experimented with both all-natural peanut butter made from just peanuts, oil, and salt, as well as the typical shelf-stable peanut butter, and both variations turned out great.
In these peanut butter bars, I use a gluten-free flour blend. I like this one here. If you are new to baking with gluten free flour, it tends to run drier soaking up more moisture from other ingredients. When measuring gluten-free flour, I always make sure I fluff my flour before measuring, and then measure with a light hand. This helps prevent recipes from becoming too dry.

This fudge frosting seems rather unassuming, but it will knock your socks off! It has the perfect pourable consistency, and then sets up just enough without becoming too hard. I use this fudge frosting recipe for so many recipes because it’s so versatile and delicious. Because it uses granulated sugar, you’ll never have any powdered sugar clumps in your frosting again.
The rich, fudgy flavor and smooth texture make it an instant hit with anyone who tries it. Whether you’re topping a cake, filling cupcakes, or even just spreading it on cookies, this fudge frosting is sure to elevate any sweet treat to the next level. The best part is, it’s super easy to make and requires simple ingredients that you likely already have in your pantry. Once you try this fudge frosting, you’ll wonder how you ever lived without it! So, if you’re ready to take your baking game to new heights, this fudge frosting is the perfect place to start.

The recipe makes in a 9X13 inch pan. and the adorable ribbon is linked here.
It’s taken me years to perfect thee perfect gluten-free peanut butter bar. I hope you enjoy them as much as we do!
If you are a huge peanut butter fan, you can also top the bar with one cup of peanut butter, whipped with one cup of powdered sugar, and spread onto the bar before frosting.E
Enjoy!

Ingredients
Method
- Preheat oven to 350°F
- Mix together butter, sugar, eggs, peanut butter, salt, soda, and vanilla in the bowl of a stand mixer.
- Add flour and oats, stir to mix.
- Spread into a 9 x 13" pan.
- Bake for 12 to 14 minutes. Do not over bake. The bars will look slightly golden on top and underbaked. That's just how you want them.
- Optional; spread with one cup of peanut butter whipped with one cup powdered sugar.
- Cool.
- Frost with fudge frosting. (recipe below)
- Melt better in a saucepan over medium heat.
- Add the sugar, milk, and cocoa. Stir and bring to a boil.
- Boil for three minutes. Remove from heat and stir in the salt and vanilla.
- Beat the mixture with a wooden spoon for a few minutes. Let rest a couple of minutes, then beat again until the mixture is thickened but still pourable. Pour over bars and enjoy.
Notes
*This post contains Affiliate links
As Always, you can shop my cute dish towels from @GeomertyHouse and use my code, CARLY, for 15% off your order!
XO, Carly
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