White Chocolate Marshmallow Cookie Bars

Sweet, soft and chewy sugar cookie bars topped with smooth white chocolate and gooey, browned marshmallows. Secretly healthy and whole grain, but you’d never know!

White Chocolate Marshmallow Cookie Bars

I’m a proud big sister! My brother graduated this winter with 2 associate degrees! He is the hardest worker I know, and I am unbelievably proud.

White Chocolate Marshmallow Cookie Bars

Charlie is a, um…picky eater. He has the oddest tastes of anyone I’ve ever met. He’s not always super into sweets, but he does clear my pantry out of any white chocolate and marshmallows I may have on hand pretty much every time he comes over. They are his two favorite things, and they are definitely two things I can get behind!

White Chocolate Marshmallow Cookie Bars

To celebrate his accomplishment, I made a simple dessert putting his favorite things together. The cookie layer is thick and soft, then it’s topped with melty white chocolate and browned marshmallows for a winning combination of flavors and textures.

White Chocolate Marshmallow Cookie Bars

And the best part? They’re health(ier) in the sneaky, secret kinda way that no one will ever guess!

White Chocolate Marshmallow Cookie Bars

Prep Time: 15 minutes

Cook Time: 15 minutes

Total Time: 30 minutes

Yield: 16 bars

White Chocolate Marshmallow Cookie Bars

Sweet, soft and chewy sugar cookie bars topped with smooth white chocolate and gooey, browned marshmallows. Secretly healthy and whole grain, but you'd never know!


  • 1 and 1/4 cups white whole wheat flour
  • 1/4 tsp baking powder
  • dash salt
  • 1/4 cup apple butter
  • 1/2 cup brown sugar, packed
  • 1 egg white
  • 1 tbsp nonfat Greek yogurt
  • 1 tsp vanilla extract
  • 3/4 cup white chocolate chips
  • 1 cup mini marshmallows


  1. Preheat oven to 375. Spray a 9x9 pan with cooking spray.
  2. In a medium bowl, whisk together flour, baking powder, and salt. Set aside. In a large bowl, beat together apple butter, sugar, egg white, Greek yogurt and vanilla until well combined. Slowly, add in flour mixture and continue beating until incorporated.
  3. Transfer dough to prepared pan and use a greased piece of parchment paper to gently and evenly press dough into the pan.
  4. Bake for 10-12 minutes until golden and set in the center. Evenly sprinkle white chocolate chips on top, followed by marshmallows.
  5. Broil for 2-3 minutes until marshmallows are browned and puffy. Pay close attention during this step--they can burn quickly if left in too long. Cool completely, and serve.


  1. says

    Oh my! I can’t have regular chocolate but I CAN have white chocolate. I’m not supposed to have wheat (for kidney stones, not an intolerance) but I will either make an exception or I will find a substitute to try. This is going to be pinned and tried soon!

    • Ari says

      Thanks Summer! I’m pretty sure I’ve never met a person who was like “Ehhh, toasted marshmallows are just okay…” They automatically make anything better in my opinion 😉

  2. says

    I love the healthy pin on these cookie bars, and they look so. incredibly. good! Thick, soft cookies are my favorite, and in bar form, topped with white chocolate AND toasted marshmallows, I think they sound like heaven!

  3. says

    This looks so delicious! I love the combination of white chocolate with marshmallows. Also, where do you get this amazing ingredient called apple butter? It sounds so delicious!

  4. Alexandra says

    Is there any substitute for the apple butter? Cause I have no idea what this is -obviously I’m not American, I’m from Europe- and I can’t find a word for it in my language. This sounds delicious and I really wanna make it. Thanks and great site!


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