a picture of two peanut butter bars with chocolate frosting on an antique plate. the image has a purple frame and purple script underneath which reads cake mix peanut butter bars
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Easy Cake Mix Peanut Butter Bars With Chocolate Frosting

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There are no two flavors that go together better than peanut butter and chocolate. These peanut butter bars with chocolate frosting are so indulgent. This shortcut recipe uses cake mix and premade frosting, making it perfect for birthday parties, bake sales, or as a quick and easy treat for any night of the week. Satisfy your chocolate peanut butter cravings with this amazingly simple recipe tonight!

two chocolate peanut butter bars on an antique china plate with a casserole dish filled with peanut butter bars in the background

How To Make Cake Mix Peanut Butter Bars

  1. Preheat oven to 350. Grease a 13 x 9 casserole dish and set aside.
  2. Combine yellow cake mix, rolled oats, butter, peanut butter, and egg in a mixer on low speed until well combined.
cake mix, rolled oats, peanut butter, butter, and egg in a stand mixer

3. Press batter into prepared casserole dish.

unbaked peanut butter bar batter pressed into the bottom of a casserole dish

4. Bake for 15-20 minutes until a light golden brown. Allow to cool before making the frosting.

baked peanut butter bars in a casserole dish before frosting

5. In a bowl mix chocolate frosting with an additional 1/4 cup of peanut butter. Spread the frosting on cooled peanut butter bars.

chocolate frosted peanut butter bars in a casserole dish

6. Cut and serve.

a close up picture of two chocolate frosted peanut butter bars on an antique china plate

Little Cooks Corner

Introduce your tiny sous chef to baking with this simple recipe. Let your little one measure and dump the ingredients into the stand mixer and practice their fine motor skills by mixing the frosting and spreading the frosting onto the bars. Learn more about cooking with littles here.

Feedback

Did these cake mix bars fix your chocolate peanut butter cravings? Let me know how they turned out in the comments below!

Pin It For Later

a pinterest pin with two images. the top picture is of a box of yellow cake mix, a package of rolled oats, a can of chocolate frosting, and a jar of JIF peanut butter. the bottom picture is of two peanut butter bars with chocolate frosting on an antique plate. text in the middle reads cake mix peanut butter bars.
two peanut butter bars with chocolate frosting sit on an antique plate

Easy Cake Mix Peanut Butter Bars With Chocolate Frosting

Yield: 24 bars
Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes

These peanut butter bars with chocolate frosting are so indulgent. This shortcut recipe uses cake mix and premade frosting, making it perfect for birthday parties, bake sales, or as a quick and easy treat for any night of the week.

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Ingredients

  • 1 box yellow cake mix
  • 3/4 cup rolled oats
  • 1/2 cup butter, softened
  • 1/4 cup creamy peanut butter
  • 1 large egg

Frosting

  • 1 can chocolate frosting
  • 1/4 cup creamy peanut butter

Instructions

  1. Preheat oven to 350. Grease a 13 x 9 casserole dish and set aside.
  2. Combine yellow cake mix, rolled oats, butter, peanut butter, and egg in a mixer on low speed until well combined.
  3. Press batter into prepared casserole dish.
  4. Bake for 15-20 minutes until a light golden brown. Allow to cool before making the frosting.
  5. In a bowl mix chocolate frosting with an additional 1/4 cup of peanut butter. Spread the frosting on cooled peanut butter bars.
  6. Cut and serve.
Nutrition Information:
Yield: 24 Serving Size: 1
Amount Per Serving: Calories: 103Total Fat: 2gSaturated Fat: 1gUnsaturated Fat: 1gCholesterol: 8mgSodium: 172mgCarbohydrates: 20gFiber: 0gSugar: 10gProtein: 1g
© Sarah
Category: Desserts

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