If you love peanut butter, this rich and creamy fudge is a must-try! It’s packed with bold peanut butter flavor and made with just four simple ingredients. The best part? It’s incredibly easy to make—no baking, no candy thermometer, and no complicated steps.
This foolproof recipe creates smooth, melt-in-your-mouth fudge every time. Perfect for holidays, parties, or when you just need a sweet treat. Plus, it makes a great edible gift!
Why You’ll Love This Recipe
Only 4 Simple Ingredients
You only need:
- Unsalted butter (1¼ cups / 283.75 g)
- Creamy peanut butter (1¼ cups / 338 g)
- Vanilla extract (1½ teaspoons)
- Powdered sugar (4½ cups / 510 g, sifted)
- Pinch of salt
No fancy ingredients—just melt, mix, and set!
Quick and Easy
- Prep time: 10 minutes
- Chill time: 1 hour
Whether you use a microwave or stovetop, this fudge comes together in no time.
No Special Equipment Needed
No candy thermometer or special tools—just a microwave or a stovetop and a mixing bowl!
Make It Your Own
Customize your fudge with add-ins like:
- Chocolate chips – For a peanut butter-chocolate combo.
- Chopped nuts – Peanuts, almonds, or pecans for crunch.
- Crushed cookies – Oreos or graham crackers add fun texture.
- Mini marshmallows – For a fluffier, chewy bite.
- Sea salt flakes – A perfect sweet-salty balance.
How to Make Peanut Butter Fudge
Step 1: Prep Your Pan
- Line an 8-inch square pan with parchment paper or lightly grease it with butter.
- Want thinner fudge? Use a 9-inch pan instead.
Microwave Method
- In a microwave-safe bowl, combine butter and peanut butter.
- Cover loosely with a paper towel and microwave on high for 2 minutes. Stir, then microwave for another 2 minutes.
- Stir in salt and vanilla extract.
- Gradually add sifted powdered sugar, stirring until smooth.
- Pour into the prepared pan, smooth the top, and refrigerate for at least 1 hour.
Stovetop Method
- Melt butter and peanut butter in a saucepan over medium heat.
- Stir frequently and bring to a gentle boil.
- Remove from heat and mix in salt and vanilla extract.
- Gradually stir in sifted powdered sugar until smooth.
- Pour into the prepared pan, smooth the top, and refrigerate for at least 1 hour.
Once set, slice into squares and enjoy!
Helpful Tips
Use the Right Peanut Butter
For best results, use creamy, store-bought peanut butter like Jif or Skippy. Avoid natural peanut butter, as the extra oil can make the fudge greasy and prevent it from setting properly.
Sift the Powdered Sugar
Sifting prevents lumps and keeps your fudge silky smooth.
Chill for Best Texture
- Refrigerate for at least 1 hour before cutting.
- For an even better texture, chill for 4 hours.
- Avoid freezing right away, as it can lead to uneven setting.
How to Cut Perfect Squares
- Use a sharp knife and warm the blade under hot water before cutting.
- Make slow, firm cuts—don’t press too hard.
- Wipe the knife clean between slices to prevent sticking.
Fun Variations
Chocolate Swirl Fudge
- Melt ½ cup of chocolate chips in the microwave.
- Pour over the peanut butter fudge mixture before it sets.
- Swirl with a toothpick or knife and chill as usual.
Crunchy Add-Ins
- Pretzels – For a salty crunch.
- Mini M&Ms or Reese’s Pieces – Adds a pop of color and chocolatey goodness.
- Chopped nuts – Boosts the nutty flavor.
- Crushed Oreos or graham crackers – A fun twist!
Buckeye-Style Chocolate Layer
- Prepare and pour the peanut butter fudge into the pan.
- Melt 1 cup of chocolate chips with 2 tablespoons of butter.
- Spread over the peanut butter layer and chill for 2 hours.
This version tastes just like a Reese’s cup in fudge form!
How to Store Peanut Butter Fudge
- Room Temperature: Store in an airtight container for up to 1 week.
- Refrigerator: Keeps fresh for up to 1 month.
- Freezer: Store for up to 3 months. Wrap each piece tightly in plastic wrap and place in a ziplock bag or container.
- Thawing: Let thaw in the fridge for a few hours before serving.
Final Thoughts
This peanut butter fudge is a rich, creamy treat that’s incredibly easy to make. With just four ingredients and simple steps, it’s a foolproof recipe anyone can master. Try it today and share your favorite variations!
Looking for more sweet treats? Check out our other easy dessert recipes!
FAQs
Can I use crunchy peanut butter?
Yes! It’ll add a little crunch, but if you prefer a smooth texture, stick with creamy peanut butter.
What if my fudge doesn’t set?
- Chill for at least 4 hours before checking.
- If it’s still too soft, re-melt and mix in more powdered sugar before chilling again.
How do I make a vegan version?
- Swap butter for coconut oil or a plant-based alternative.
- Use a smooth, non-oily peanut butter for the best texture.
Enjoy your homemade peanut butter fudge and happy snacking!