Peanut Butter Marshmallow Cookies (2024)

Published: by Natalie · This post may contain affiliate links · 14 Comments

Peanut Butter Marshmallow Cookies are chewy peanut butter cookies filled with mini semi-sweet chocolate chips and gooey mini marshmallows. This easy cookie recipe is made with simple pantry ingredients!

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Peanut Butter Marshmallow Cookies (1)

Peanut butter cookies with marshmallows are full of peanut butter flavor and sweet, gooey marshmallows. They’re also packed with chocolate chips and are chewy and delicious!

For more delicious peanut butter cookie recipes, try my Peanut Butter Brownie Cookies, reeses peanut butter chocolate chip cookies and peanut butter and nutella cookies!

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  • Why This Recipe Works
  • Ingredients
  • Instructions
  • Expert Tips
  • Recipe FAQs
  • Peanut Butter Marshmallow Cookies

Why This Recipe Works

  • These cookies are soft and chewy like my biscoff chocolate chip cookies!
  • They’re packed with peanut butter, chocolate chips and marshmallows. They’re full of peanut butter flavor like my Peanut Butter Swirl Brownies and peanut butter donuts.
  • These marshmallow peanut butter cookies are super easy to make!

Ingredients

Peanut Butter Marshmallow Cookies (2)

Below are useful notes about some of the ingredients for peanut butter and marshmallow cookies.

  • Butter:Use room temperature unsalted butter.
  • Sugars-This recipe uses both granulated sugar and light brown sugar.
  • 1 egg-Use 1 large room temperature egg. The egg helps the ingredients bind together.
  • Peanut butter-I recommend baking with commbercial brands of creamy peanut butter such as Jif or Skippy. I don’t recommend baking with natural peanut butter or crunchy peanut butter. Natural peanut butter can make the cookies too oily or crumbly.
  • Chocolate chips– Use mini or regular semi-sweet chocolate chips.
  • Marshmallows– Use mini marshmallows. Make sure they are fresh.

Please see the recipe card below for the full list of ingredients and their measurements.

Substitutions & Variations

  • Substitute the milk chocolate or dark chocolate for the semi-sweet.
  • Use chopped chocolate in place of chocolate chips. I love baking with Lindt dark chocolate bars.
  • Swap in some chopped peanuts in place of some of the chocolate chips!

Instructions

Peanut Butter Marshmallow Cookies (3)
Peanut Butter Marshmallow Cookies (4)

Step 1: (Photo 1 above) Using an electric mixer, beat the butter, peanut butter and sugars til smooth and combined.

Step 2: (Photo 2 above)Mix in the egg and vanilla extract. With the mixer on low speed, beat in the dry ingredients. Use a spatula to stir in the chocolate and marshmallows.

Peanut Butter Marshmallow Cookies (5)
Peanut Butter Marshmallow Cookies (6)

Step 3: (Photo 3 above)Use an ice cream scoop dough into balls. Cover and chill 1 hour.

Step 4: (Photo 4 above)Place 6 cookie dough balls on a baking sheet. Bake at 350 F for 12-14 minutes until edges are light golden brown.

Expert Tips

  • Scoop dough balls before chilling.
  • Stick a few extra marshmallows on top of the cookie dough balls before chilling.
  • Use a scoop makes cookies the same size. It’s also less messy. I use a 2 ounce ice cream scoop to measure and shape the the cookies.

Recipe FAQs

What’s the best peanut butter for baking?

I recommend baking with commbercial brands of creamy peanut butter such as Jif or Skippy. I don’t recommend baking with natural peanut butter or crunchy peanut butter. Natural peanut butter can make the cookies too oily or crumbly.

Why chill cookie dough?

It’s best to chill this cookie dough for at least 1 hour or up to 24 hours. Chilling the cookie dough keeps the cookies from spreading too much. It also enhances the flavor.

How to freeze the dough?

Scoop the cookie dough into balls. Place them on a quarter baking sheet lined with parchment paper. Cover with plastic wrap and freeze til frozen solid, Next, transfer balls to a freezer safe storage bag and freeze up to 3 months.

How to store these cookies?

Store these chocolate peanut butter marshmallow cookies in an airtight container at room temperature for up to 3 days or freeze for up to 1 month.

Peanut Butter Marshmallow Cookies (7)
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Peanut Butter Marshmallow Cookies

Natalie

Peanut Butter Marshmallow Cookies are chewy peanut butter cookies filled with mini semi-sweet chocolate chips and gooey mini marshmallows. This easy cookie recipe is made with simple pantry ingredients!

4.91 from 21 votes

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 13 minutes mins

Chill Time 1 hour hr

Total Time 1 hour hr 28 minutes mins

Course Cookies, Desserts

Cuisine American

Servings 12 large cookies

Calories 316 kcal

Ingredients

  • 10 tablespoons unsalted butter room temperature
  • cup creamy peanut butter
  • 2 teaspoons vanilla extract
  • 1 large egg room temperature
  • 1 1/2 cups all purpose flour
  • 3/4 teaspoon baking soda
  • 1/2 teaspoon salt
  • cup brown sugar light or dark, packed
  • 1/4 cup granulated sugar
  • 3/4 cup mini chocolate chips
  • 1/2 cup mini marshmallows

Instructions

  • In a medium sized bowl, whisk to combine the flour, baking soda, and salt.

  • In the bowl of a hand held or stand mixer, cream the butter, peanut butter, and brown and granulated sugar until combined and creamy, about 2 minutes.

  • Beat in the egg followed by the vanilla and beat until combined. Scrape down the sides of the bowl.

  • With the mixer on low, gradually mix in the dry ingredients. Use a spatula or wooden spoon to stir in the chocolate chips followed by the marshmallows until they are incorporated into the dough.

  • Use an ice cream scoop to scoop dough into domes and place them on a small baking sheet to chill. Chill for 1 hour. Cookies are large and will spread as they bake, so bake 6 cookies per baking sheet.

  • Line two aluminum baking sheets with parchment paper. Preheat oven to 350 Fahrenheit. Place six cookie dough balls on each baking sheet, spreading them at 2-3 inches apart. Bake one tray of cookies at a time. Bake at 350 F for 12-14 minutes, until edges are light golden brown.

  • Leave cookies on the baking sheet and allow to cool completely.

Notes

Flour: Measure flour accurately. Be careful not to use too much flour. Too much flour can prevent cookies from spreading and makes them hard.

Chocolate: Use regular or mini chocolate chips. Instead of semi-sweet chocolate chips, you can use milk chocolate chips, dark chocolate chips, or peanut butter chips. You could also use chocolate chunks.

Peanut butter- I suggest baking with creamy peanut such as Jif or Skippy. I wouldn’t recommend baking with natural peanut butter.

Size: I use an ice cream scoop to form dough balls. It’s less messy and also makes sure cookies are the same size and shape. If you prefer smaller cookies, you can use 1.5 tablespoon sized balls of dough. For smaller cookies, you’ll need to reduce the baking time by about 2 minutes.

Chilling dough: It’s best to chill the cookie dough for at least 1 hour. Chilling the cookie dough keeps the cookies from spreading too much. It also enhances the flavor.

Storing: Store these chocolate peanut butter marshmallow cookies in an airtight container at room temperature for up to 3 days or freeze for up to 1 month.

Nutrition

Serving: 1cookieCalories: 316kcalCarbohydrates: 39gProtein: 4gFat: 16gSaturated Fat: 8gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.4gCholesterol: 40mgSodium: 216mgPotassium: 82mgFiber: 1gSugar: 25gVitamin A: 337IUVitamin C: 0.1mgCalcium: 34mgIron: 1mg

Please note that nutritional values are created by an online calculator and should only be used as an estimate.

Tried this Recipe? Leave a comment below & tag @parsleyandicing on social!

Peanut Butter Marshmallow Cookies (13)

About Natalie

Reader Interactions

Comments

  1. Jean H

    Peanut Butter Marshmallow Cookies (14)
    Yum! Perfect combination of flavors and texture. Looking forward to making these again!

    Reply

    • Natalie

      Hey Jean, Yay so happy you enjoyed these cookies!! Thanks so much for making them!

      Reply

  2. Beth Byrd

    Peanut Butter Marshmallow Cookies (15)
    So delicious! These are now going to be part of my regular rotation. Everyone in our house loved them!

    Reply

    • Natalie

      YAY so happy these are a big hit in your house, Beth! Thank you so much for letting me know. Have a great weekend!

      Reply

  3. Matt

    Peanut Butter Marshmallow Cookies (16)
    can we get the measurements in metric

    Reply

    • Natalie

      Sure-just added them!

      Reply

  4. Brenda

    Peanut Butter Marshmallow Cookies (17)
    made these cookies twice now. Everyone loved them. Thank you for sharing your recipe.

    Reply

    • Natalie

      Love to hear that, Brenda! Thanks so much for making this recipe and for taking the time to comment. Enjoy the rest of your weekend 🙂 -Natalie

      Reply

  5. The Bakineer

    Peanut Butter Marshmallow Cookies (18)
    Made these to include in a care package for a deployed soldier although used mini dehydrated marshmallows, used small scoop, and baked for 9-10 minutes.

    Reply

    • Natalie

      Hi! Thanks so much for making these cookies and for sharing your recipe notes! That’s so nice you’re including them in a care package and I hope they are enjoyed.

      Reply

  6. Felecity

    Would love to make these but can you use light brown sugar instead?!

    Reply

    • Natalie

      Hi Felecity, Yes you definitely use light brown sugar in place of dark brown sugar. Please let me know if you have any other questions. Hope you enjoy the recipe! 🙂 -Natalie

      Reply

  7. maddie walker

    Peanut Butter Marshmallow Cookies (19)
    This recipe is so good! I just found it 2 weeks back and have already made it 2x! It is a crowd favorite over here, always requested. I recommend it greatly!!

    Reply

    • Natalie

      Thanks so much for making these and for your comment Maddie! So happy they’re a favorite!

      Reply

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