PBJ Crumble Bars

  • Author: Kristina LaRue
  • Prep Time: 20 mins
  • Cook Time: 30 mins
  • Total Time: 50 mins
  • Yield: 16 bars 1x


PBJ Crumble Bars made more wholesome with homemade watermelon chia jam, peanut butter, and whole grain oats for a yummy after school treat or dessert for your next party!



  • For Watermelon Chia Jam
  • 2 cups small diced watermelon rind
  • 1 cup small diced strawberries
  • 3 tablespoons lemon juice (about 1 lemon)
  • 2 tablespoons 100% pure maple syrup
  • 2 tablespoons chia seeds
  • For Crumble Bars
  • 1 cup white whole wheat flour
  • ½ cup raw old fashioned oats
  • ½ cup brown sugar
  • ½ teaspoon baking powder
  • ⅛ teaspoon salt
  • 8 tablespoons unsalted butter, cold
  • 1 egg
  • 1 teaspoon vanilla extract
  • ½ cup natural peanut butter, melted
  • 1 cup jam


  1. To prepare Watermelon Chia Jam
  2. In medium sized pot over medium low heat, cook watermelon rind and strawberries, stirring occasionally. Cover with lid and cook about an hour until softened and ready to mash.
  3. Using a pestle or back of a spoon, mash watermelon and strawberries to form a jam-like texture.
  4. Remove from heat and stir in lemon juice, maple syrup and chia seeds. Transfer to storage container and place in fridge at least an hour to thicken.
  5. To prepare PBJ crumble bars
  6. Preheat oven to 350 degrees F. Line 9×9 inch baking dish with parchment paper.
  7. In large bowl, whisk together flour, oats, sugar, baking powder, and salt.
  8. Slice butter into small cubes (about the size of a pea), and crumble into flour mixture with your hands. Stir in egg and vanilla extract to form crumbly dough.
  9. Firmly press ⅔ dough into bottom of pan to form a layer of crust.
  10. Gently spread melted peanut butter over crust. Pour jam into pan and carefully spread a layer of jam over the peanut butter. Crumble remaining dough on top of jam.
  11. Bake in 350 degree F oven for 30 minutes until crust is golden. Allow to cool before slicing into 12 bars.


  • Serving Size: 1/16 recipe
  • Calories: 221
  • Sugar: 19g
  • Sodium: 112 mg
  • Fat: 10g
  • Saturated Fat: 4g
  • Carbohydrates: 29g
  • Fiber: 2g
  • Protein: 3g