Peanut Butter Fudge Treat

Squares of creamy peanut butter fudge, a sweet and simple American dessert recipe. Save to Pinterest
Squares of creamy peanut butter fudge, a sweet and simple American dessert recipe. | cookingwithbrielle.com

This indulgent peanut butter confection combines creamy peanut butter and butter with vanilla and powdered sugar to create a smooth, rich texture. It’s chilled until set, making it easy to slice into squares. Variations include adding chopped peanuts or chocolate swirls for extra texture and flavor. Perfect for satisfying sweet cravings or gifting. Store at room temperature or refrigerated for freshness.

There's something almost meditative about making peanut butter fudge on a quiet afternoon, watching the butter and peanut butter swirl together into something so glossy and inviting that you can barely resist tasting it before it's even set. I stumbled into this recipe years ago when a friend brought a batch to a potluck, and I spent the entire evening sneaking extra pieces, wondering how something so simple could taste so impossibly rich. The first time I made it myself, my kitchen filled with this warm, toasted peanut butter aroma that made everyone ask what smelled so incredible before they even stepped through the door. Now it's become my go-to when I need something that feels homemade but doesn't require fussing over a hot stove for hours.

I'll never forget making a triple batch of this fudge the night before my sister's birthday party, only to realize halfway through that I'd grabbed chunky peanut butter instead of creamy. Instead of starting over, I just went with it, and honestly, the texture ended up being even more interesting—little pockets of crunch throughout the smooth fudge. My sister's friends went absolutely wild for it, and now I can't make it the original way without someone asking me to "make it the crunchy kind again." It taught me that sometimes the best recipes are the ones that bend a little.

Ingredients

  • Unsalted butter: Use real butter, not margarine—it's the base of everything, and the quality genuinely matters for that melt-in-your-mouth texture.
  • Creamy peanut butter: Natural or conventional works, but make sure it's fully combined before you start (no separated oil on top).
  • Pure vanilla extract: The real stuff, not imitation—it rounds out the peanut butter flavor without making it taste artificial.
  • Fine sea salt: A small pinch that you barely taste but that somehow makes the peanut butter flavor pop.
  • Powdered sugar, sifted: Sift it first so there are no lumps lurking in your fudge—they'll ruin the smooth texture you're after.

Instructions

Prepare your canvas:
Line that 8x8 baking pan with parchment paper, making sure some hangs over the edges so you can pull the whole block out later without any wrestling.
Melt and marry:
In a medium saucepan over medium heat, watch the butter soften and then fully melt, then add the peanut butter and stir constantly for about 2 minutes until they're completely smooth and combined. It's actually kind of satisfying to watch it transform from two separate ingredients into something uniform and glossy.
Season the base:
Pull the pan off the heat, then add your vanilla and salt, stirring well to distribute them throughout.
Sweeten gradually:
Here's where patience matters—add the powdered sugar a bit at a time, mixing thoroughly after each addition instead of just dumping it all in at once. This prevents lumps and gives you a feel for when the mixture goes from spreadable to thick and fudgy.
Spread and set:
Pour the mixture into your waiting pan and use a spatula to spread it into an even layer, working quickly because it starts to set up as it cools.
Chill strategically:
Let it hang out at room temperature for 30 minutes to cool down a bit, then slide it into the fridge for at least an hour until it's completely firm and ready to cut.
Cut with confidence:
Use the parchment overhang to lift the whole block out of the pan, then cut it into 36 squares with a sharp knife (wiping the knife between cuts keeps the edges clean).
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There's a moment after the fudge sets—that perfect point when you pull it from the fridge and cut into it—where you realize you've made something genuinely special with just five ingredients and about 20 minutes of actual work. I watched my mom hand out pieces to her book club one month, and they kept calling for the recipe, which meant more to me than any compliment on anything I'd ever cooked.

Variations to Play With

This basic formula is honestly begging for experimentation, and the beauty is that it's forgiving enough to handle tweaking. I've swirled in melted chocolate, pressed crushed pretzels into the top, even sprinkled a light dusting of fleur de sel before it fully set. Each version feels like a discovery, and honestly, half the fun is figuring out what the next batch should be.

Storage and Gifting

Fudge keeps beautifully at room temperature for a week in an airtight container, which means you can actually make it ahead without stress. If you're gifting it, I layer it between parchment in a pretty box, and people always seem to think you spent way more time on it than you actually did.

The Little Details That Matter

It's the small choices that separate mediocre fudge from the kind people actually remember. Don't rush the mixing step when adding sugar, because that's where the smooth texture gets built. Pay attention to your heat level too—medium heat is your friend, not high heat that causes the mixture to do weird things on the sides of the pan.

  • If your fudge turns out too soft, you likely needed another 30 minutes in the fridge, or your kitchen was warmer than average.
  • If it's too hard and crumbly after cutting, you might have used too much sugar or not mixed it thoroughly enough with the butter and peanut butter base.
  • Room temperature fudge has a slightly softer bite than chilled fudge, so serve it however feels right to you.
Homemade peanut butter fudge: a close-up shows the smooth, rich, and delicious treat. Save to Pinterest
Homemade peanut butter fudge: a close-up shows the smooth, rich, and delicious treat. | cookingwithbrielle.com

Peanut butter fudge is proof that the best treats don't need to be complicated—they just need real ingredients and a little care. Make a batch this week and watch how quickly it disappears.

Peanut Butter Fudge Treat

A rich, creamy treat featuring smooth peanut butter and a melt-in-the-mouth texture.

Prep 10m
Cook 10m
Total 20m
Servings 36
Difficulty Easy

Ingredients

Wet Ingredients

  • 1 cup unsalted butter
  • 1 cup creamy peanut butter
  • 2 teaspoons pure vanilla extract

Dry Ingredients

  • 1/4 teaspoon fine sea salt
  • 3 3/4 cups sifted powdered sugar

Instructions

1
Prepare Baking Pan: Line an 8x8-inch baking pan with parchment paper, ensuring some overhang for easy removal.
2
Melt Butter and Combine Peanut Butter: In a medium saucepan over medium heat, melt the butter. Add the peanut butter and stir continuously until fully combined and smooth, about 2 minutes.
3
Add Flavorings: Remove the saucepan from heat. Stir in the vanilla extract and salt until evenly incorporated.
4
Incorporate Powdered Sugar: Gradually add the sifted powdered sugar, mixing thoroughly after each addition until the mixture is smooth and thick.
5
Pour Mixture into Pan: Quickly pour the mixture into the prepared pan and spread evenly using a spatula.
6
Cool and Chill: Allow the fudge to cool at room temperature for 30 minutes, then refrigerate for at least 1 hour until set.
7
Slice and Store: Lift the fudge from the pan using the parchment overhang and cut into 36 squares. Store in an airtight container at room temperature for up to 1 week or refrigerate for up to 2 weeks.
Additional Information

Equipment Needed

  • Medium saucepan
  • Spatula
  • 8x8-inch baking pan
  • Parchment paper
  • Mixing bowl
  • Sifter

Nutrition (Per Serving)

Calories 120
Protein 2g
Carbs 13g
Fat 7g

Allergy Information

  • Contains peanuts and dairy (butter). May contain trace allergens depending on brands; check labels.
Brielle Thompson

Home chef sharing approachable recipes, smart meal prep tips, and family-friendly comfort food for everyday cooks.