Peanut Butter and Jelly Crumble Bars

There’s nothing like the combination of peanut butter and jelly. So classic and perfect.

But when you combine peanut butter and jelly in dessert form and add a crumble topping, it’s even better.

Peanut Butter and Jelly Crumble Bars - Soft and chewy PEANUT BUTTERY bars topped with strawberry jelly and a crispy oatmeal crumble topping!! Easy, no-mixer recipe that'll be your new FAVORITE way to eat PB&J!!

I adapted my Peanut Butter and Jelly Blondies for the soft yet chewy peanut buttery base. It reminds me of slightly underbaked Peanut Butter Cookies which I adore.

My Blueberry Crumble Bars recipe gave me inspiration for the buttery, oatmeal-based crumble topping. The crumble topping adds texture, crispiness, and is a perfect contrast to the soft bars.

MY OTHER RECIPES


Peanut Butter and Jelly Crumble Bars - Soft and chewy PEANUT BUTTERY bars topped with strawberry jelly and a crispy oatmeal crumble topping!! Easy, no-mixer recipe that'll be your new FAVORITE way to eat PB&J!!

For the jelly layer I used Smuckers Fruit and Honey Strawberry Fruit Spread. I love that it’s sweetened with honey and has a very short ingredients list. It’s wonderfully sweet and worked perfectly in the bars.

It spreads very easily which is especially nice here because the base layer bakes for 15 minutes and then you add the jelly and crumble topping. Having something that’s very easy to spread on tender, half-baked bars is a baker’s bonus.

Peanut Butter and Jelly Crumble Bars - Soft and chewy PEANUT BUTTERY bars topped with strawberry jelly and a crispy oatmeal crumble topping!! Easy, no-mixer recipe that'll be your new FAVORITE way to eat PB&J!!

The bars were a hit with kids and adults alike. I gave half the batch to a friend who declared them amazing and my family was begging for more after they demolished theirs.

It’ll be your new favorite way to eat PB&J.

Peanut Butter and Jelly Crumble Bars - Soft and chewy PEANUT BUTTERY bars topped with strawberry jelly and a crispy oatmeal crumble topping!! Easy, no-mixer recipe that'll be your new FAVORITE way to eat PB&J!!

Print Recipe

Peanut Butter and Jelly Crumble Bars

There's nothing like the combination of peanut butter and jelly and when you combine them in dessert form and add a crumble topping, it's even better. The crumble topping adds texture, crispiness, and is a perfect contrast to the soft yet chewy peanut buttery bars. The wonderfully sweet jelly is perfect. The bars were a hit with kids and adults alike and our new favorite way to eat PB&J.

Yield: one 8x8-inch pan

Prep Time: 10 minutes

Cook Time: about 40 to 43 minutes, divided

Total Time: 2+ hours, for cooling

Ingredients:

Bars

  • 1/2 cup unsalted butter (1 stick), melted
  • 1/3 cup creamy peanut butter, melted
  • 1 large egg
  • 1 cup light brown sugar, packed
  • 1 tablespoon vanilla extract
  • 1 cup all-purpose flour
  • 1/2 teaspoon salt, or to tast 

Crumble Topping

  • 1/4 cup unsalted butter (half of 1 stick), melted
  • 1/2 cup all-purpose flour
  • 1/3 cup old-fashioned whole-rolled oats (don't use quick cook or instant, they're finer and behave like flour and will make mixture too dry)
  • 1/4 cup granulated sugar
  • 2 tablespoons light brown sugar, packed
  • 1/4 teaspoon salt, or to taste
  • one 9-ounce jar Smuckers Fruit and Honey Strawberry Fruit Spread

Directions:

  1. Bars - Preheat oven to 350F. Line an 8-by-8-inch baking pan with aluminum foil, spray with cooking spray; set aside.
  2. To a large, microwave-safe bowl add the butter and heat on high power to melt, about 1 minute.
  3. Add the peanut butter and heat for 30 seconds to soften. Whisk the butter and peanut butter mixture until smooth and combined.
  4. Wait momentarily before adding the egg so you don't scramble it. Add the egg, brown sugar, vanilla, and whisk until smooth.
  5. Add the flour, salt, and stir until just combined, don't overmix.
  6. Turn batter out into prepared pan and bake for 15 minutes. While bars bake, make the crumble topping.
  7. Crumble Topping - To a large, microwave-safe bowl add the butter and heat on high power to melt, about 1 minute.
  8. Add the flour, oats, sugars, salt, and stir to combine. Mixture will be dry and sandy with some larger, well-formed crumble pieces; set aside.
  9. After bars have baked for 15 minutes, remove pan from the oven, and spread the fruit spread in an even flat layer over the surface, leaving a 1/2-inch bare margin at the edges.
  10. Evenly sprinkle with the crumble topping mixture.
  11. Return pan to oven and bake for about 25 to 28 minutes, or until crumble topping is lightly golden browned and set. Place pan on a wire rack to cool for at least 90 minutes before slicing and serving. Bars will keep airtight at room temperature for up to 1 week, or in the freezer for up to 6 months.
Only Eats

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Peanut Butter and Jelly Blondies – An easy, no-mixer recipe with swirls of peanut butter and jelly baked into soft, tender blondies!

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Peanut Butter and Jelly Muffins averiecooks.com

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Peanut Butter and Jelly Granola (Whole Foods Copycat) – A copycat granola with PB&J flavors! You’re going to want way more than a handful!

Peanut Butter and Jelly Granola (Whole Foods Copycat) - A copycat granola with PB&J flavors! You're going to want way more than a handful!!

Post brought to you by Smuckers. The recipe, images, text, and opinions expressed are my own.

23 comments

  1. I’m so in love. You’ve married two of my favorite dessert things: PB and crumb. I mean, that’s about as heaven as it gets. These are crazy dangerous, in the best way ever!

  2. Crumble topping is the best–I can see why everyone loved these! I could have my PBJ in dessert form any time…and I need to look for the jelly you used because I haven’t noticed it yet but want to try it.

  3. These are the things that dreams are made of!! That blondie base is heaven by itself, but CRUMBLE???? OMG.

  4. These look absoltuley amazing. Like, I’m actually drooling here at HQ. We can’t wait to make these and see how long they take to disappear from the office kitchen. Thanks so much for sharing,

    xo,
    The Newsette
    http://www.thenewsette.com

  5. And I settled for a PB&J sandwich for lunch when I could have had these????

  6. You are so right! Nothing like putting classics together and making something DELISH! I could shovel a whole pan of these in my face right now! ;)

  7. I wasn’t aware that Smuckers had a honey-sweetened jam! Definitely need to go out and buy a bottle, then make these bars :)!! Jorge would love them.

  8. As always, Averie has the best bar recipes on her site! My favorite combo, by far, is PB&J. We have some friends coming over this weekend, and this may be the dessert we enjoy. Thanks for sharing :)

  9. It is finally cooler and I can bake again! These bars are happening!

  10. hey girl these look amazing!

  11. these look SO good Averie!!!! love me a little jam + crumble in the am :)

  12. Love this dense, soft peanut butter blondie base! And you just cannot go wrong with crumble! Extra sugar and butter? Yes, please!

  13. Hi Averie, there used to be a time where I could comment more frequently in your site. I have been following you since the loveveggiesandyoga days. I still check your site multiple times every week. Your site is a part of my life.
    You are so gifted. I made these bars and they came out beautifully. I make a lot of your recipes still, its just that I don’t get time to comment how good they turn it out. I am so ready for your pumpkin recipes this fall.
    All the best

  14. Can this recipe be doubled for a 13×9 pan?

  15. looking forward to trying this recipe but was wondering – if I use fresh strawberries, should I roast them first? or just but them on top at the beginning and cook it with the bar the entire time? Thanks!

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