Peanut butter fans rejoice! These Peanut Butter Texas Sheet Cake cookies are the ultimate peanut butter cookie recipe! Made with cake mix, they’re extra thick and fluffy…and super easy!
Peanut Butter Sheet Cake Cookies
If you loved our Texas Sheet Cake Cookies, then you’ve got to try the peanut butter version! But a word of warning, these are not for the casual peanut butter fan…
Nope, these Peanut Butter Texas Sheet Cake Cookies are absolutely loaded with peanut butter, from the fluffy peanut butter cake mix cookies all the way to the luscious cooked peanut butter frosting.
First, we started with a box cake mix for super fluffy cookies. And then we added LOTS of peanut butter of course!
Like our Texas sheet cake cookies, we made a cooked frosting for our peanut butter cake mix cookies…with LOTS of peanut butter!
SO much peanut butter! But I’m not complaining! 😉
Related: Love peanut butter as much as I do? Then you MUST try Chocolate Peanut Butter Texas Sheet Cake too!
Are Cookies from Cake Mix Better than Cookies from Scratch?
Normally, I’d say that nothing beats baking from scratch, but cake mix cookies are pretty darn delicious! And easy!
A few benefits to baking cookies using a cake mix:
- It’s easy! There are fewer ingredients and fewer steps to mess up.
- Even if your pantry is lacking traditional cookie ingredients, if you have a box of cake mix you’re back in business!
- Cake mix cookies are extra thick and fluffy in the middle. If you like thick, slightly chewy cookies, then this is the recipe for you!
What You Need to Make Cake Mix Peanut Butter Cookies
Affiliate links provided for your convenience in re-creating this recipe; read disclosure policy here.
- Yellow cake mix
- Creamy peanut butter — Make sure you have a jar that’s mostly full, as you’ll use peanut butter for both the cookies and the frosting!
- Vegetable oil — Canola oil or any other oil you’d use for baking would work too.
- Butter — Be sure to use unsalted butter!
- Creamy peanut butter
- Milk — You can use any milk you have on hand, even plant-based milk.
- Powdered sugar
- Vanilla extract
Kitchen Tools Used:
- Cookie sheet
- Wire cooling rack
- Non-stick silicone baking mats
- Cookie scooper
- Wire whisk
- Measuring cups and spoons
Can You Use Gluten Free Cake Mix to Make Cookies?
Sure! However, if you’ve tried a lot of gluten free mixes and flour blends, you’ll know that all gluten free products are not created equal.
I’d stick with a brand that you know and love. If it works better for cake mix, it will work better for cake mix cookies!
How to Make Peanut Butter Cookies with Cake Mix
Peanut butter cookies made with cake mix might be the easiest peanut butter cookie recipe I’ve ever tried!
All you do is combine the cookie ingredients in a mixing bowl:
You can really see how much peanut butter there is…yum!
Mix using a stand mixer or electric hand mixer until all ingredients are well incorporated. The batter will be thick — that’s perfectly ok!
Use a cookie scoop to portion out dough onto prepared baking sheet, then press down to flatten slightly.
Then you bake! You want to take care not to over-cook them, so be sure to watch the oven and remove as soon as the edges turn golden (not brown!)
Remove cookies from oven and allow to cool on the cookie sheet for about 10 minutes before moving to a wire cooling rack.
To make the frosting:
Add the butter, peanut butter, and milk to a small saucepan over medium heat. Bring to a boil, whisking together ingredients, then remove from heat.
Slowly add powdered sugar, continuing to whisk until the frosting is smooth. Stir in the vanilla.
Pour frosting slowly over each cookie, so it coats the surface.
Allow frosting to set, then enjoy!
What is the best way to store yellow cake mix peanut butter cookies?
Store your cookies for up to 3 days in an airtight container at room temperature. Be sure to let the icing set first before you stack cookies!
I don’t recommend keeping in the fridge, as this can mess with the texture.
More of our favorite cookie recipes:
- Pioneer Woman Cowboy Cookies
- Twix Cookies
- Homemade Nutter Butters
- Root Beer Float Cookies
- Carrot Cake Cookies
Peanut Butter Texas Sheet Cake Cookies Recipe (Printable Copy)
If you like this recipe, please rate it! We’d also love to hear your thoughts in the comments below.
Peanut Butter Texas Sheet Cake Cookies
- 1 box yellow cake mix
- 1 cup creamy peanut butter
- 2 large eggs room temperature
- 1/2 cup vegetable oil
- 1/2 cup unsalted butter
- 2/3 cup creamy peanut butter
- 6 Tablespoon milk
- 2 1/2 cups powdered sugar
- 1 teaspoon vanilla
- Preheat oven to 350°F and prepare a cookie sheet with parchment paper or a non-stick silicone baking mat.
- Pour cake mix into a large mixing bowl and whisk to remove any lumps.
- Add 1 cup peanut butter, eggs, and oil to the bowl with cake mix. Beat together using a stand mixer or electric hand mixer until all ingredients are well incorporated (the cookie batter will be thick).
- Portion out dough into balls onto prepared baking sheet.
- Gently press down cookies to flatten.
- Bake at 350°F for 9-11 minutes. Keep an eye on them and take care not to over-bake.
- Remove cookies from oven and allow to cool on the cookie sheet for about 10 minutes before moving to a wire cooling rack.
- Add the butter, peanut butter, and milk to a small saucepan over medium heat. Bring to a boil, whisking together ingredients, then remove from heat.
- Slowly add powdered sugar, continuing to whisk until the frosting is smooth. Stir in the vanilla.
- Pour frosting over cookies, slowly as to make sure that it coats the surface of each cookie.
- Allow frosting to set, then enjoy!