Easy Peanut Butter Texas Sheet Cake Cookies
Updated Sep 19, 2025, Published May 22, 2019
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If you loved the original Texas Sheet Cake Cookie then this peanut butter version is sure to make you smile. Made with a cake mix, loaded with peanut butter and topped with a cooked frosting…these Peanut Butter Texas Sheet Cake Cookies are everything and more! Keep scrolling down for the recipe, you’ll love it!
3 cookie recipes in 3 weeks is a quick reminder of just how deep my love of cookies is. I have other recipes in the works but cookies win, EVERY.SINGLE.TIME. Especially when the words peanut butter and Texas sheet cake are in the same recipe title.
Starting a cookie recipe with a cake mix is such a wonderful idea. It is such a time saver! But there are some things to remember when you use a cake mix to make cookies.
Tips for Using a Cake Mix to make Cookies
- Prep the dry cake mix by sifting or whisking it to remove any lumps in the mix before adding any wet ingredients.
- Remember that the finished dough will be thick but that is to be expected.
- Use a cookie scoop to make cookie mounds. This allows all of the cookies to bake up nicely and at the same time because they are all the same size. {See my other cookie baking tips}
- Do not over bake the cookies. It is super important to remove the cookies from the oven, {even if they look under baked} and let them cool on the baking sheet for at least 10 minutes.
See a full post with all of my tips on How to Make Cake Mix Cookies Easily.
Peanut Butter Texas Sheet Cake Cookie Dough
Whisk or sift the dry yellow cake mix, making sure to break down any lumps. This is an important step because once you add the dry ingredients they are nearly impossible to remove.
Measure out your peanut butter, 1 cup to be exact.
Combine all of the ingredients {cake mix, peanut butter, oil and eggs} into a bowl and mix until combined. I used a hand mixer but you can do this step by hand as well.
When the dough comes together, it will be thick.
Using a 1.5 tablespoon cookie scoop, fill your cookie sheet with 8-12 mounds of dough and bake for 9-11 minutes.
Or until cookies are set and the sides are just starting to brown. Remember, we DO NOT want to over bake the cookies. Especially because peanut butter cookies can tend to be a little dry anyway.
Let them cool on the cookie sheet for at least 10 minutes to set up.
Cooked Peanut Butter Sheet Cake Frosting
Once all of the cookies are baked, it is time to turn our attention to the frosting. In a saucepan, combine butter, peanut butter and milk. Bring to a boil and stir constantly. Remove from burner, add powdered sugar and vanilla. Whisk until smooth. The frosting will be thick.
Pour or spoon frosting over cookies and spread to cover the top of each cookie.
Let the cookies sit at room temperature until the frosting is set up. Then enjoy this soft and super indulgent cookie that will have you totally hooked. Peanut Butter Texas Sheet Cake Cookies are pure heaven.
The texture alone is what dreams are made of. Excuse me while I go and eat a cookie or 12.
Are you in love with these peanut butter Texas sheet cake cookies too? Try these recipes…
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Texas Sheet Cake Cookies
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Kentucky Butter Cake Cookies
-
Pumpkin Roll Cake Cookies
-
Mexican Hot Chocolate Cookies
-
Brookies
-
Boston Cream Pie Cookie Bites
-
How to Make Cake Mix Cookies Easily
Peanut Butter Texas Sheet Cake Cookies
Ingredients
Cookie
- 1 box yellow cake mix
- 1 cup creamy peanut butter
- 2 eggs
- 1/2 cup oil
Frosting
- 1/2 cup butter
- 2/3 cup creamy peanut butter
- 6 tbsp milk
- 2 1/2 cups powdered sugar
- 1 tsp vanilla extract
Instructions
Cookies
- Preheat oven to 350 degrees.
- Combine cookie ingredients in large bowl and mix until completely incorporated. NOTE: Dough will be thick.
- Using a medium sized cookie scoop {1.5 tablespoon}, scoop cookies onto a parchment lined cookie sheet.
- Bake for 9-11 minutes, remove from oven and let cool on cookie sheet for 10 minutes before moving them to a cooling rack. Repeat until all of the dough is baked.
Frosting
- Combine the butter, peanut butter and milk in a small saucepan over medium heat and bring to a boil. Remove from heat, add powdered sugar and whisk until smooth. Stir in vanilla extract.
- Pour {or spoon} frosting over cookies. Use a knife or spoon to move excess frosting and be sure that the top of each cookie is completely covered.
- Let frosting set and serve. Keep your peanut butter Texas sheet cake cookies in an air tight container at room temperature for up to 3 days.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
How long do you boil the frosting? Thanks
It doesn’t take long. A minute or two is all you need. Enjoy!
They were good but I did not care for the yellow cake mix. It stood out as much or more than the peanut butter. I will try again with a white mix. I really like the idea of this cookie!