Fluffer Nutter Macarons have a classic french macaron shell filled with a mixture of creamy peanut butter and marshmallow fluff.

Looking down on two rows of fluffer nutter macarons. They have white shells and a swirled filling

A while ago on my Instagram, I asked my followers to tell me what flavors of macarons they would like to see from me. I got so many great suggestions and ideas! One of the most highly requested flavors was Fluffer Nutter Macarons. This idea hadn’t even crossed my mind and I probably wouldn’t have made them without y’alls encouragement, but I am so glad I did!

If you aren’t familiar with the fluffer nutter flavor, I think it originally started as a sandwich, or at least that’s how I was first introduced to it! It is peanut butter and marshmallow fluff mixed together. So simple but so tasty!

Looking down on three rows of macarons next two a spoonful of marshmallow fluff and a spoonful of creamy peanut butter

Macarons are one of my favorite things to make, but they are definitely tricky. They have a mind of their own and one wrong step in the recipe can totally change the end result. BUT they are also so fun to make, a major win when you get them right, and delicious no matter how they end up looking.

That being said, it is so possible to master macarons. I compiled a Step-by-Step Macaron post with all of my best tips and tricks for making the best macarons possible. It has all of the steps and tools that I use every time I make macarons and I can promise you it will get you closer to being a macaron master!

A side shot of two rows of macarons

Ingredients for Fluffer Nutter Macarons:

Ingredients for french macaron shell:

  • Almond Flour. Be sure that you are using almond flour and not almond meal.
  • Powdered Sugar. This will aid in the flavor and structure of the finished macarons.
  • Egg Whites. Having your egg whites at room temperature will make it easier to whip them.
  • Granulated Sugar. Sugar will give structure to the beaten egg whites.

Ingredients for fluffer nutter filling:

  • Creamy Peanut Butter. Be sure to use creamy and not chunky or you won’t be able to pipe the filling.
  • Marshmallow Fluff. You can make your own marshmallow fluff, but I think it’s worth it to save your time and just buy it from the store.
All of the ingredients laid out in bowls

Macaron Tips

  • If possible, make your macarons on a less humid day. You will need to rest the macarons for longer and they might not turn out as well on a humid day.
  • Don’t over-mix the batter. You only need to macaronage until you can make a figure 8 with the batter. If you over-mix the macarons will spread too much.
  • Wipe the bowl down with vinegar before adding the egg whites to whip. Even a speck of leftover dish soap or fat (egg yolk, butter, etc.) will inhibit the egg whites from whipping up properly.
  • Let the macarons rest before eating. Macarons are best when they have matured for 12 or so hours. So after you fill the macarons, let them rest overnight for the best flavor.
A close up of fluffer nutter macarons

How to make french macarons

STEP 1: Line a cookie sheet with a silicone mat or parchment paper.

STEP 2: In a food processor add the powdered sugar and almond flour and pulse until fully combined and rid of lumps. Sift the dry ingredients into a large bowl. If you don’t have a food processor you can just sift the ingredients together.

The dry ingredients combined in a bowl

STEP 3: In a medium bowl, prepare the french meringue. Beat the egg whites on low speed until they get frothy. Add one drop of food coloring at this point, if desired. Increase the speed and slowly add the sugar. Beat until stiff peaks form.

A bowl of french meringue whipped to stiff peaks

STEP 4: Add the french meringue into the dry ingredients and begin to gently fold with a silicone spatula. This process is called macaronage. You will know the batter is ready when the ingredients are fully combined and not streaky. You should be able to hold the spatula above the bowl and draw a figure 8 smoothly without the batter breaking off. Transfer the batter to a piping bag fitted with a piping tip. Pipe 1-inch disks onto the prepared cookie sheet.

The wet and dry ingredients combined

STEP 5: Firmly tap the cookie sheet onto the counter 3 or 4 times to bring any air bubbles to the surface. Use a toothpick to pop any remaining air bubbles.

STEP 6: Let the french macarons rest for an hour. There needs to be a dry layer on the top. You should be able to run your finger over the top without any transferring to your finger.

The macaron batter piped onto a baking sheet

STEP 7: Preheat the oven to 280 degrees (F). This is the temperature that I have found works well for my oven, but you may need to play around with the temperature.

STEP 8: Place the macarons on the middle rack of the oven and bake for 5 minutes, rotate the cookie sheet, bake for another 5 minutes, and rotate the cookie sheet again, bake for 5 minutes. 15 minutes in total.

STEP 9: Remove from the oven and allow to cool completely. They should peel off the mat easily.

STEP 10: When the macarons are cooled peel them off of the mat and match each shell to another that is the same size.

Fluffer Nutter Filling

STEP 1: In a small bowl gentle fold together the peanut butter and marshmallow fluff. You want the mixture to stay streaky, so don’t fully combine.

The peanut butter and marshmallow fluff folded together

STEP 2: Transfer the mixture to a piping bag and pipe your desired amount onto the inside of a macaron shell. Sandwich another macaron shell on top.

A close up of one macaron

Can I make french macarons ahead of time?

For sure! I make macarons ahead of time pretty often and they always still taste amazing. If I am making macarons more than a day before I want to serve them I freeze them. They will freeze well for about two weeks. Just pull them out of the freezer about an hour before you are ready to serve them and these fluffer nutter macarons will thaw out perfectly.

Looking down on a row of macarons and a spoonful of marshmallow fluff

More Macaron Recipes:

  • Lemon Poppy Seed Macarons– The shells are poppy seed french macarons and the filling is a light and bright whipped lemon curd.
  • Churro Macarons– A classic french macaron shell rolled in cinnamon sugar and filled with dulce de leche.
  • Blackberry Lavender Macarons– Lavender flavored french macaron shells filled with blackberry buttercream and blackberry jam.
  • Cotton Candy Macarons– These fun swirled macarons are filled with a cotton candy buttercream.

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Fluffer Nutter Macarons

A classic French macaron shell filled with a mixture of creamy peanut butter and marshmallow fluff
Prep Time20 mins
Cook Time15 mins
Resting Time1 hr
Total Time1 hr 35 mins
Course: Dessert
Cuisine: French
Keyword: fluffer nutter, fluffer nutter macaron, French Macaron, Macarons, marshmallow fluff, Peanut Butter
Servings: 30 macarons
Calories: 73kcal

Ingredients

For Macaron Shells:

  • 1 2/3 cup (200 grams) powdered sugar
  • 1 cup (110 grams) almond flour
  • 3 large (100 grams) egg whites
  • 1/4 cup (50 grams) granulated sugar

For Filling:

  • 1/3 cup (42 grams) marshmallow fluff
  • 1/4 cup (67 grams) creamy peanut butter

Instructions

For Macarons:

  • Line a cookie sheet with a silicone mat (my favorite baking sheet for macarons and favorite silicone mats for macarons). I highly recommend a silicone mat of some kind, but if you don’t have one then you can also use parchment paper.
  • In a food processor add the powdered sugar and almond flour and pulse until fully combined and rid of lumps. Sift the dry ingredients into a large bowl. If you don’t have a food processor you can just sift the ingredients together.
  • In a medium bowl, prepare the french meringue. You can use a stand mixer for this, but I prefer a hand mixer for a batch this small. Beat the egg whites on low speed until they get frothy. Increase the speed and slowly add the sugar. If you add the sugar too fast you will deflate the meringue. Beat until stiff peaks form. This is when you pull the beater out and the meringue stands up with a slight curve. It should not fall or jiggle too much if you move the beater. If you want to add food coloring, do it now, but add it sparingly or you will make the meringue too liquidy.
  • Add the french meringue into the dry ingredients and begin to gently fold with a silicone spatula. This process is called macaronage. You will know the batter is ready when the ingredients are fully combined and not streaky. You should be able to hold the spatula above the bowl and draw a figure 8 smoothly without the batter breaking off. A good way to test if the batter is ready is to place a very small amount in your piping bag and pipe it onto your mat. If the batter is stiff and does not spread at all, then it is not ready. If the batter immediately runs out, then you have over folded. The batter should spread slightly and the tops should even out (there shouldn’t be any little tips sticking out), but it should not spread out too much.
  • Transfer the batter to a piping bag fitted with a piping tip (this is my favorite for macarons). Pipe 1-inch disks onto the prepared cookie sheet.
  • Firmly tap the cookie sheet onto the counter 3 or 4 times to bring any air bubbles to the surface. Use a toothpick to pop any remaining air bubbles.
  • Let the macarons rest for an hour. There needs to be a dry layer on the top. You should be able to run your finger over the top without any transferring to your finger. If it is really humid outside this process will likely take longer.
  • Preheat the oven to 280 degrees (F). This is the temperature that I have found works well for my oven, but you may need to play around with the temperature.
  • Place the macarons on the middle rack of the oven and bake for 5 minutes, rotate the cookie sheet, bake for another 5 minutes and rotate the cookie sheet again, bake for 5 minutes. 15 minutes in total. The macarons should not have any color to them, and they should peel off of the mat easily.
  • Remove from the oven and allow to cool completely.
  • Peel each macaron shell off of the mat and match each shell to another that is the same size.

For Filling:

  • In a small bowl gentle fold together the peanut butter and marshmallow fluff. You want the mixture to stay streaky, so don't fully combine.
  • Transfer the mixture to a piping bag and pipe your desired amount onto the inside of a macaron shell. Sandwich another macaron shell on top.

Nutrition

Serving: 1macaron | Calories: 73kcal | Carbohydrates: 10.4g | Protein: 1.7g | Fat: 2.9g | Saturated Fat: 0.4g | Sodium: 15mg | Potassium: 19mg | Fiber: 0.5g | Sugar: 9g
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