Peanut Butter Fudge

When I was a kid, peanut butter fudge always felt like pure magic. The pan would sit on the counter, cooling slowly, and I’d sneak into the kitchen just to press my fingertip against the edge, hoping for a taste before it was ready.

That silky, nutty sweetness melting across my tongue was worth the wait every time. It wasn’t a dessert that appeared every week, which made it even more special.

Whenever it did, it carried with it the joy of celebration, the comfort of home, and the kind of treat that could make a whole day feel brighter.

Now, every time I stir together sugar, milk, and peanut butter, I can hear the gentle scrape of the spoon in the pan from years ago.

The swirl of creamy base mixing with crunchy roasted peanuts creates a texture that feels both rich and playful.

Each square holds the same warmth that I once found as a child leaning against the kitchen counter, waiting for the fudge to set.

And when you cut into it, the clean edges and soft center remind you that patience really does have its reward.

This recipe carries that same old-fashioned charm—no rush, no fuss, just honest flavors layered into a treat that disappears far too quickly once it’s cut and shared.

Peanut butter fudge isn’t just candy; it’s the kind of sweet that leaves behind a memory long after the last square is gone.

Peanut Butter Fudge Recipe

Ingredients

2 cups granulated sugar
1 cup whole milk
1 cup creamy peanut butter
1 cup marshmallow creme (or fluff)
1 teaspoon vanilla extract
1 cup lightly salted roasted peanuts (whole or chopped)

Instructions

Line an 8×8-inch square baking dish with parchment paper, leaving a little overhang on the sides for easy removal later. Lightly grease the parchment with butter or non-stick spray.
In a medium heavy-bottomed saucepan, combine the sugar and milk. Place over medium heat and stir until the sugar is completely dissolved.
Bring the mixture to a gentle boil. Once it starts boiling, let it cook for 3–4 minutes, stirring constantly, until it slightly thickens.
Remove the pan from the heat and immediately stir in the peanut butter and marshmallow creme. Stir quickly and thoroughly until smooth and fully combined.
Add the vanilla extract and roasted peanuts. Mix again to distribute the peanuts evenly throughout the fudge mixture.
Pour the fudge mixture into the prepared pan. Use a spatula to spread it evenly and smooth the top.
Allow the fudge to cool at room temperature for at least 3 hours, or until fully set. For quicker setting, place it in the refrigerator for 1–2 hours.
Once firm, lift the fudge out of the pan using the parchment paper overhang. Place it on a cutting board and cut into small squares with a sharp knife.
Store the fudge in an airtight container at room temperature for up to 1 week, or in the refrigerator for up to 3 weeks. For longer storage, freeze in a freezer-safe container for up to 2 months, placing parchment between layers to prevent sticking.

What Is Peanut Butter Fudge?

Peanut butter fudge is a smooth, rich, and slightly chewy candy made by cooking sugar and milk, then mixing it with peanut butter and marshmallow creme. It sets into thick squares that melt in the mouth while offering a nutty sweetness.

This treat is popular because it feels indulgent but is also simple enough to make at home without any professional equipment.

How To Store Peanut Butter Fudge?

Proper storage is important if you want your fudge to stay fresh, soft, and safe to eat.

Room temperature storage: Place the fudge in an airtight container and keep it in a cool, dry place. It will stay fresh for about 1 week without losing its flavor.
Refrigerator storage: If you live in a warm area or prefer your fudge a bit firmer, store it in the refrigerator in an airtight container. It will last for up to 3 weeks.
Freezer storage: For long-term storage, freeze the fudge in a freezer-safe container with parchment paper between layers to prevent sticking. It can last up to 2 months this way. When ready to eat, let it thaw at room temperature.

Can You Make Peanut Butter Fudge Ahead Of Time?

Yes, peanut butter fudge is a great make-ahead treat. Because it stores well at both room temperature and in the refrigerator, you can prepare it days or even weeks before you need it.

This makes it an excellent choice for parties, holidays, or gifting since you don’t have to worry about making it at the last minute.

Why Did My Peanut Butter Fudge Not Set?

Sometimes fudge doesn’t firm up the way it should, and that can be frustrating.

Incorrect cooking time: The sugar and milk mixture must boil long enough to thicken slightly. If it’s undercooked, the fudge will be too soft.
Too much liquid: Adding extra milk or not measuring properly can stop the fudge from setting.
Not cooling long enough: Fudge takes several hours to fully set at room temperature or at least a couple of hours in the refrigerator. Cutting too early may make it look runny or soft.

Can I Use Crunchy Peanut Butter Instead Of Creamy?

Yes, you can substitute creamy peanut butter with crunchy peanut butter if you want more texture.

The roasted peanuts already add crunch, but crunchy peanut butter gives extra nutty bites in every square. Just remember that crunchy peanut butter might make the mixture a little thicker to stir.

How Do You Cut Peanut Butter Fudge Neatly?

Cutting fudge cleanly makes it look as good as it tastes.

Use a sharp knife: A thin, sharp blade slices through smoothly.
Warm the knife slightly: Dip the knife in hot water, wipe it dry, then cut for cleaner slices.
Cut straight down: Don’t saw back and forth; press straight down for sharp edges.
Work in small sections: Start from the middle and cut outward to keep squares even.

Can You Add Other Mix-Ins To Peanut Butter Fudge?

Peanut butter fudge is flexible and can be customized with different flavors or textures.

Chocolate chips: Add after mixing to create swirls or a marbled look.
Toffee bits: Give a crunchy caramel flavor that pairs beautifully with peanut butter.
Dried fruits: Chopped cranberries, raisins, or cherries add sweetness and chewiness.
Sea salt: A sprinkle of flaky salt on top balances the sweetness with a salty edge.

Is Peanut Butter Fudge Good For Gifting?

Yes, peanut butter fudge makes a thoughtful gift because it is homemade, long-lasting, and universally loved. Wrap pieces in parchment paper, place them in a tin, or pack them in decorative boxes.

Since it doesn’t spoil quickly, it travels well and can be sent to family and friends during holidays or celebrations.

Serving Ideas For Peanut Butter Fudge

Peanut butter fudge is delicious on its own, but serving it in creative ways can make it even more enjoyable. Whether for a family gathering, a holiday party, or just a sweet treat at home, here are some ideas that can make your fudge stand out.

Classic squares on a platter: Cut the fudge into neat bite-sized pieces and arrange them in rows. This is the simplest and most elegant way to serve at parties or gatherings.
Gift boxes and tins: Wrap individual pieces in parchment paper or small candy wrappers and pack them into decorative tins or boxes. This makes a thoughtful homemade gift.
Layered dessert cups: Place a piece of fudge at the bottom of a small glass, top with whipped cream, and sprinkle crushed peanuts or chocolate shavings for a quick layered dessert.
Fudge crumbles over ice cream: Chop fudge into tiny bits and sprinkle over vanilla or chocolate ice cream. The creamy and nutty bites add a rich texture.
Paired with fruit: Serve fudge squares alongside sliced apples, bananas, or strawberries. The fresh fruit balances the richness with a light, refreshing touch.
Holiday dessert table centerpiece: Stack pieces of fudge in a pyramid shape on a cake stand and garnish with peanuts or chocolate drizzle for a festive display.

Variations Of Peanut Butter Fudge

Peanut butter fudge is already a classic, but you can easily change up the flavors without losing its creamy, rich texture. Here are some variations that keep the base recipe intact while adding a fun twist.

Chocolate peanut butter fudge: Melt 1 cup of chocolate chips and swirl it into the fudge before spreading it in the pan. This creates a marbled effect and a rich chocolate flavor.
Peanut butter and jelly fudge: After pouring the fudge into the pan, spoon small drops of strawberry or raspberry jam on top and swirl lightly with a toothpick for a nostalgic PB&J taste.
White chocolate peanut butter fudge: Stir in 1 cup of melted white chocolate with the peanut butter mixture for a sweeter, creamier version.
Nutty peanut butter fudge: Fold in chopped almonds, cashews, or walnuts before spreading into the pan for extra crunch and flavor depth.
Peanut butter coconut fudge: Add ½ cup shredded coconut into the mixture for a chewy texture that pairs surprisingly well with peanut butter.
Peanut butter caramel fudge: Drizzle warm caramel sauce on top after spreading the fudge in the pan, then chill. Each square will have a sweet, gooey topping.