Peanut butter fudge is the kind of dessert that hits all the right notes—rich, creamy, sweet, and just a little bit salty. Whether you’re making it for the holidays, gifting it to friends, or simply indulging in a personal treat, this no-fuss confection never fails to deliver comfort and satisfaction.
With its melt-in-your-mouth texture and deep nutty flavor, peanut butter fudge is one of the easiest sweets you can prepare.
Why You’ll Love This Peanut Butter Fudge
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No-Bake Simplicity – Quick and easy with just a few basic ingredients.
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Perfectly Creamy – Soft, smooth texture that melts in your mouth.
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Customizable – Easily adapted with chocolate, sea salt, or mix-ins.
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Great for Gifting – Cut into neat squares, it’s ideal for holiday tins or dessert boxes.
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Long Shelf Life – Stores well at room temperature, fridge, or freezer.
Basic Ingredients List
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1 cup unsalted butter
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1 cup creamy peanut butter
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1 teaspoon vanilla extract
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1 pound (4 cups) powdered sugar
Optional Add-ins:
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Pinch of salt (enhances flavor)
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½ cup crushed peanuts or chopped nuts
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Swirl of chocolate or melted chips
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Sea salt flakes for garnish
Timing and Servings
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Prep Time: 10 minutes
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Chill Time: 2 hours
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Total Time: 2 hours 10 minutes
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Servings: Makes about 36 1-inch squares
How to Make Peanut Butter Fudge: Step-by-Step
Step 1: Prepare Your Pan
Line an 8×8-inch or 9×9-inch square baking pan with parchment paper or foil, leaving some overhang for easy lifting later.
Step 2: Melt Butter and Peanut Butter
In a medium saucepan over medium heat, melt butter and peanut butter together, stirring constantly. Once smooth, remove from heat.
Step 3: Add Vanilla and Sugar
Stir in the vanilla extract. Gradually add powdered sugar, whisking or stirring vigorously until fully combined and smooth.
Step 4: Pour and Spread
Quickly pour the fudge mixture into the prepared pan. Smooth the top with a spatula.
Step 5: Chill and Set
Refrigerate for at least 2 hours or until firm. Once set, lift the fudge out using the parchment overhang and cut into squares.
Popular Peanut Butter Fudge Variations
1. Chocolate-Peanut Butter Swirl
Pour half the fudge, then drizzle melted chocolate, swirl with a knife, and top with the remaining fudge.
2. Crunchy Fudge
Add ½ cup chopped roasted peanuts or crushed pretzels for a crunchy contrast.
3. Layered Fudge
Make a layer of chocolate fudge and top it with peanut butter fudge for a stunning two-tone dessert.
4. Salted Caramel Peanut Butter Fudge
Drizzle homemade caramel sauce over the top and sprinkle with flaky sea salt.
Tips for the Perfect Fudge Every Time
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Use a Sifter – Sift powdered sugar to avoid lumps in the final product.
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Work Quickly – Fudge sets fast; pour and smooth it as soon as it’s mixed.
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Don’t Overheat – Overcooked butter and peanut butter can separate or turn greasy.
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Use Quality Peanut Butter – A creamy, not oily peanut butter will yield the smoothest texture.
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Chill Fully – Allow at least 2 hours for the fudge to firm up before cutting.
Storing and Freezing Peanut Butter Fudge
At Room Temperature
Store in an airtight container in a cool, dry place for up to 1 week.
In the Refrigerator
Lasts up to 2 weeks. Store in an airtight container to prevent it from absorbing odors.
In the Freezer
Wrap tightly in plastic wrap and place in a freezer bag. Freeze for up to 3 months. Thaw in the refrigerator before serving.
Healthier Peanut Butter Fudge Options
Low-Sugar Fudge
Use powdered erythritol or monk fruit sweetener in place of powdered sugar.
Vegan Version
Use vegan butter and make sure your peanut butter contains no animal-derived ingredients.
Protein Boosted
Add a scoop of vanilla or peanut butter protein powder for added nutrition. You may need to adjust the sugar to maintain the right texture.
How to Cut Clean Squares
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Use a hot knife (dip in hot water and wipe dry).
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Clean the knife between cuts.
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Score the top lightly with a ruler for even portions before slicing.
Common Mistakes to Avoid
1. Using Natural Peanut Butter
Natural peanut butter tends to separate and creates a grainy, greasy texture.
2. Not Sifting the Sugar
Skipping this step can result in lumps in the finished fudge.
3. Not Lining the Pan
Makes it difficult to remove and slice the fudge neatly.
4. Cutting Before It’s Set
Letting the fudge chill completely ensures clean, uniform pieces.
Serving Suggestions
Peanut butter fudge is a star on any dessert tray. Serve it:
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With a cup of coffee or hot chocolate
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As a sweet side on a charcuterie or candy board
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Topped with a dusting of cocoa or powdered sugar
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With ice cream for an indulgent topping
Nutritional Information (Per Square, Approximate)
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Calories: 140
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Fat: 9g
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Carbohydrates: 14g
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Sugar: 12g
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Protein: 2g
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Fiber: 0.5g Values may vary based on ingredients and toppings.
Peanut Butter Fudge for Special Occasions
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Holiday Treat Boxes – Add to cookie tins or holiday platters.
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Wedding Favors – Package in decorative bags or boxes.
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Gifts for Friends or Teachers – A thoughtful and homemade gift idea.
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Bake Sales – Easy to transport and crowd-pleasing.
FAQs
Can I Use Crunchy Peanut Butter?
Yes! It adds texture, but the fudge won’t be as smooth.
Can I Make It in the Microwave?
Absolutely. Combine ingredients in a microwave-safe bowl and heat in 30-second bursts, stirring each time.
Why Is My Fudge Oily or Grainy?
Overcooking or using natural peanut butter are common culprits. Stick with creamy, processed peanut butter for best results.
Can I Add Marshmallows or Condensed Milk?
Yes, you can mix in mini marshmallows or use sweetened condensed milk for a different texture and taste.
Conclusion
Peanut butter fudge is a quick, easy, and incredibly rewarding dessert. It requires minimal effort and delivers maximum flavor and texture. Whether you’re preparing it for a holiday gathering, a special gift, or just to satisfy a sweet craving, this creamy treat checks all the boxes.
With the tips, variations, and storage advice provided here, you can confidently make the perfect batch every time. And the best part? You can customize it endlessly, ensuring it fits your preferences and occasion. Once you master this classic recipe, peanut butter fudge will become a go-to favorite in your dessert collection.