Peanut Butter and Jelly Cake Bars (Peanut Butter and Jelly Bars)

Peanut Butter and Jelly Bars are a fun and kid-friendly recipe! These Peanut Butter and Jelly Cake Bars make for a tasty dessert, a simple snack, or even an indulgent breakfast. I love putting a new spin on classic kid’s food to make something creative and delicious for the whole family. You’ll never think of Peanut Butter and Jelly the same once you’ve had these snack cakes!

Peanut Butter and Jelly Cake Bars cut into squares

Peanut Butter and Jelly Cake Bars

These tasty peanut butter and jelly bars take the classic peanut butter and jelly flavor to a new level!

I love experimenting with kid-friendly recipes around here now that I’ve got Henry in tow. I want to have plenty of fun things to cook for him as he gets older, so it’s best that I start testing things out now! That’s what inspired me to make these Peanut Butter and Jelly Cake Bars.

Peanut Butter and Jelly is the most classic, iconic kid’s food there is…I mean, who didn’t eat peanut butter and jelly sandwiches growing up? They’re so sweet and delicious, and the creamy peanut butter (or crunchy…which side are you on?) mixed with classic grape jelly is one of the best flavor combinations of all time!

Make these Peanut Butter and Jelly Cake Bars for breakfast, dessert, or a fun snack. The whole family will love these Peanut Butter and Jelly Bars any time of day!

Peanut Butter and Jelly Bars arranged on a wood board

Peanut Butter and Jelly cake cut into bars

Peanut Butter and Jelly Bars are the perfect snack!

Every family needs an easy go-to snack recipe beyond the typical store-bought stuff. This creative peanut butter and jelly snack recipe is perfect for kids after school, on the weekends, or to pack for play dates.

We cut the peanut butter and jelly cake into small squares to make them the ideal size for quick snacks without overindulging (unless you want to). They’re so easy to pack up for parties or eating on the go. They make a quick and tasty breakfast too, and of course these peanut butter and jelly bars are SO GOOD for dessert.

These little PB&J snack cakes are so great for sharing with everyone you love.

Peanut Butter and Jelly for breakfast?

Who said you can’t have peanut butter and jelly for breakfast? Consider these peanut butter and jelly cake bars your next sweet and indulgent breakfast. It’s a fun Saturday morning recipe, but these little squares are also easy to grab as you head out the door in the morning.

And if you want a healthier pb&j recipe for breakfast…try this Peanut Butter and Jelly Oatmeal instead.

Peanut butter and jelly swirled inside of white cake squares

Close up of peanut butter and jelly snack cakes

How to Make Peanut Butter and Jelly Bars

These Peanut Butter and Jelly Cake Bars are so easy to make. I used a box of cake mix to make the process simple, and added a few more things to get that classic peanut butter and jelly flavor.

To make these peanut butter and jelly bars, you’ll need the following ingredients:

  • Box of white cake mix
  • Vegetable oil
  • Peanut Butter
  • Eggs
  • Grape jelly
  • Vanilla extract
  • Buttermilk or whole milk
  • Powdered sugar

You probably already have most of the ingredients at home, so there’s no reason not to try these Peanut Butter and Jelly Bars. Just go out and get a box of cake mix and you should be good to.

Check the recipe card at the bottom of this post for full instructions on how to make these PB&J snack cakes.

Peanut Butter and Jelly bar with a bite taken out

close up of a peanut butter and jelly square

Have I convinced you to try these Peanut Butter and Jelly Cake Bars yet? This is such a fun kid-friendly snack recipe…and who doesn’t love Peanut Butter and Jelly?!

If you like these peanut butter and jelly bars, try these other kid-friendly recipes:

 

See the recipe card for details on how to make these kid-friendly Peanut Butter and Jelly Cake Bars. Enjoy!

Peanut Butter and Jelly Snack Cake

Course: Dessert
Cuisine: American
Keyword: cake bar, peanut butter and jelly, snack cake
Prep Time: 10 minutes
Cook Time: 1 hour
Total Time: 1 hour 10 minutes
Servings: 8
Calories: 552 kcal
Author: Becky Hardin
Peanut Butter and Jelly Cake Bars are a fun and kid-friendly recipe! These Peanut Butter and Jelly Bars make for a tasty dessert, a simple snack, or even an indulgent breakfast. I love putting a new spin on classic kid's food to make something creative and delicious for the whole family. You'll never think of Peanut Butter and Jelly the same once you've had these snack cakes!
Print

Ingredients

For the Cake:

  • 1 15.25 ounce box white cake mix
  • ¼ cup vegetable oil
  • ½ cup smooth peanut butter room temperature
  • 3 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup buttermilk or whole milk

For the PB&J swirl:

  • 1/3 cup smooth peanut butter at room temperature
  • ¼ cup powdered sugar
  • 1-2 tablespoons vegetable oil
  • 1/2 teaspoon vanilla extract
  • 1/3 cup grape jelly or jam
  • ¾ teaspoon hot water

Instructions

For the Cake Mix:

  1. Set the oven rack to the middle position and heat the oven to 350°F.
  2. Spray an 8x8 or 9x9 baking dish with nonstick cooking (or baking) spray. Set aside.
  3. In the mixing bowl of a stand mixer (or hand-held mixer), slowly beat together the cake mix, oil, peanut butter, eggs, vanilla and milk. Mix one minute on low until ingredients are combined. Turn mixture to medium and mix 1-2 more minutes until ingredients are smooth and the dry ingredients have been incorporated into the batter. Pour the batter into the prepared baking pan; set aside.

For the PB&J swirl:

  1. In a small bowl, whisk together the peanut butter, sugar, oil and vanilla until smooth; set aside.
  2. In another small bowl, whisk together the jelly (jam) and the hot water until loosened and almost smooth.

For the Cake:

  1. Place alternating dollops of the grape jelly and the peanut butter mixtures, about ½-1 inch apart, over the entire cake. Drag the tip of a knife through the dollops to create a swirl pattern throughout the entire cake and from edge-to-edge.
  2. Bake at 350°F, 45-60 minutes (depending on the size pan) until a toothpick or cake tester inserted in the middle comes out almost clean. Transfer cake to a cooling rack to cool completely before cutting.
  3. Leftovers can be kept, covered, at room temperature up to 3 days.
  4. Enjoy!
Nutrition Facts
Peanut Butter and Jelly Snack Cake
Amount Per Serving
Calories 552 Calories from Fat 198
% Daily Value*
Total Fat 22g 34%
Saturated Fat 10g 50%
Cholesterol 64mg 21%
Sodium 652mg 27%
Potassium 294mg 8%
Total Carbohydrates 77g 26%
Dietary Fiber 2g 8%
Sugars 41g
Protein 12g 24%
Vitamin A 2.8%
Vitamin C 1.5%
Calcium 19.8%
Iron 11.8%
* Percent Daily Values are based on a 2000 calorie diet.

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