Name: Fluffernutter Bars
Prep time: 24 min
Cook time: 28 min
Total time: 52 min
Yield: 16
Cuisine: American
Ingredients: 3/4 cup creamy peanut butter; 1/4 cup salted butter, at room temperature; 1/2 cup packed brown sugar; 1/4 cup granulated white sugar; 1 large egg; 2 tablespoons milk; 1 teaspoon vanilla extract; 1 cup all purpose flour; 1/2 teaspoon baking soda; 1/8 teaspoon salt; One 8-ounce package miniature Reeses Peanut Butter Cups; 3/4 cup Marshmallow Creme

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Fluffernutter Bars are made up of peanut butter cookie dough, peanut butter cups and marshmallow creme. They are the perfect, delicious combination!

October 8th is National Fluffernutter Day! Celebrate by making yourself a classic fluffernutter sandwich, or bake these Fluffernutter Bars so you can share them with everyone. Share your fluffernutter creation on social media today by using the hashtag #NationalFluffernutterDay, #FluffernutterDay and #RecipesForHolidays. Be sure to check out my complete list of October food holidays so you won’t miss a day of fun!

“All you need is love and fluffernutter.”
-Unknown

The History of Fluffernutters:

The Fluffernutter Sandwich is a peanut butter and marshmallow creme sandwich served on white bread. It was first created in the early 20th century (during WWI) after marshmallow creme was invented in Massachusetts.

Emma Curtis invented Snowflake Marshmallow Creme in 1913. She sent the recipe for this peanut butter and marshmallow cream sandwich out to customers in 1918. It’s believed that this is the origin of the idea for this sandwich.

The sandwich was dubbed as the “Fluffernutter” by an advertising agency in 1960.

Fluffernutter is now a registered trademark of Durkee-Mower, covering ice cream and printed recipes sold as a component of food packaging and cookbooks. Durkee-Mower is the Marshmallow Fluff company. In 2006, Durkee-Mower sued Wiliams Sonoma for infringing upon their trademark by selling a marshmallow and peanut butter candy under the Fluffernutter name.

dough with added peanut butter cups in bowl

How to make Fluffernutter Bars:

The complete recipe and video for these bars is at the end of this post.

Make a peanut butter cookie dough, and stir in mini Reeses peanut butter cups.

peanut butter cookie dough pressed into pan

Reserve 1 cup of the cookie dough, and press the rest into an 8×8-inch pan. Bake for 15 minutes.

fluffernutter bars in pan ready for oven

Take the pan out of the oven and sprinkle in remaining cookie dough and spoonfuls of Marshmallow Creme. Bake again.

And then you’ll have your Fluffernutter Bars!

fluffernutter bars stacked on white platter

Let cool completely, and then cut and serve. Store leftovers in a sealed container for up to three days. If you love Reeses, you might also like to try our Reeses Stuffed Chocolate Chip Cookie Bars.

Fun Facts About Fluffernutter:

Since the Fluffernutter Sandwich was created in Massachusetts, it has continued to be a popular sandwich in that state. It’s been proposed that it should become the official state sandwich, but that legislation hasn’t passed yet.
Somerville, Massachusetts holds an annual festival called, “What’s the Fluff?” This is a celebration of Marshmallow Fluff and Fluffernutter sandwiches.
In 2006, Brigham’s ice cream introduced a Fluffernutter flavor.
In 2011, NASA astronaut Richard Linnehan ate a Fluffernutter while aboard the international space station.
Modern day Fluffernutter sandwiches sometimes include Nutella, bananas, bacon and other things. Recipes for Fluffernutter bars, cookies, cupcakes and more have been created and shared by millions.