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Fluffernutter Cookie Pie

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It’s a peanut butter cookie loaded with mini marshmallows and baked in a pie crust! It is like my childhood dreams in pie form!

slice of peanut butter cookie pie with mini marshmallows baked in.

Imagine a soft peanut butter cookie dotted with bits of toasted marshmallow and nestled in a flaky pie crust. Actually, don’t imagine it, get to baking so you can try it for yourself!

You guys, my friend Alli from Tornadough Alli just published a cook book! It is called Untraditional Desserts and it is fabulous.

I found Alli very early on in my blogging journey. She and I were both relatively new to blogging and it was encouraging to have somebody to learn alongside.

pie crust filled with peanut butter cookie dough and mini marshmallows, ready to bake.

Then Alli’s blog took off and went crazy. She started producing videos too, in fact you may recognize her hands from mine. 😉

She has a sweet tooth that rivals mine and she makes the most beautiful baked goods. So when I heard she was working on a book of desserts, I knew it would be great.

She named it Untraditional Desserts and it revolves around flavors and ideas that are familiar, but with a fun twist.  She sent me a copy before it was released and my stomach growled as I flipped through the pages.

Fluffernutter cookie pie next to picture of pie in cookbook.

This is a time of year where sweets are everywhere and I really don’t need to be making anything extra. It’s birthday season in my family and the holidays too, so even my sweet tooth can be overwhelmed.

However the pictures looked just to good to not bake a little something from the book sooner rather than later. I had a few recipes marked as possibilities and then I stumbled on the marshmallow peanut butter cookie pie.

Fluffernutter cookie pie in pan with slice missing.

Of course I had to make it, what choice did I have? Luckily it was as good as the picture suggested!

Peanut butter treats usually get my husband’s attention and soft peanut butter cookies are one of his favorites. So even though he was stuffed from dinner, he still needed to have a taste.

Little Dude loved it too. He spotted it when he came home from school and could barely wait until after dinner for a taste.

Peanut butter cookie pie with marshmallows.

Fluffernutter Pie

Imagine a soft peanut butter cookie dotted with bits of toasted marshmallow and nestled in a flaky pie crust. Actually, don't imagine it, get to baking so you can try it for yourself!
4.88 from 8 ratings
Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Course Pie
Cuisine American
Servings 12 Servings
Calories 374 kcal


  • 1 pie crust
  • ½ cup butter softened
  • ¾ cup creamy peanut butter
  • ½ cup brown sugar
  • ½ cup granulated sugar
  • 1 large egg
  • 1 ½ teaspoons vanilla extract
  • 1 Tablespoon milk
  • ½ teaspoon salt
  • 1 ½ cups all purpose flour
  • 1 ½ cups mini marshmallows


  • Preheat oven to 350°F.
  • Roll out your pie crust and place into a deep dish 9 inch pie pan. crimp edges and set aside.
  • Cream butter, sugar and brown sugar until light and fluffy. Beat in the egg, vanilla, milk and salt.
  • Add the flour and mix until a dough forms. Fold in the marshmallows and then press dough into pie crust.
  • Bake 35 minutes or until the center is just set.
  • Remove the pie from the oven and cool completely before serving.


Serving: 1ServingCalories: 374kcalCarbohydrates: 44gProtein: 7gFat: 20gSaturated Fat: 8gPolyunsaturated Fat: 10gCholesterol: 36mgSodium: 300mgFiber: 2gSugar: 21g
Tried this recipe?Mention @carleecooks or tag #cookingwcarlee!

Thanks for sharing!

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