Peanut Butter Fudge made in the microwave is my go-to treat when I want something sweet and satisfying without spending much time in the kitchen. This recipe is incredibly simple, requiring just a few ingredients and minimal effort. The result is a rich, creamy fudge that melts in my mouth and satisfies my peanut butter cravings instantly.

Why I Love This Recipe

I love this recipe because it’s quick, easy, and doesn’t require any special equipment. With just a microwave and a few pantry staples, I can whip up a batch of delicious fudge in no time. It’s perfect for last-minute guests, holiday treats, or simply indulging in a sweet snack. Plus, the texture is smooth and the flavor is intensely peanut buttery, which I absolutely adore.

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

Unsalted butter
Creamy peanut butter (I prefer using a no-stir variety like Jif or Skippy)
Vanilla extract
Powdered sugar

Directions

I line an 8×8-inch pan with parchment paper, leaving some overhang for easy removal later.
In a microwave-safe bowl, I combine the butter and peanut butter. I microwave on high for 2 minutes, then stir. I continue microwaving in 1-minute intervals, stirring between each, until the mixture is completely melted and smooth.
I stir in the vanilla extract, then gradually add the powdered sugar, mixing until the fudge is thick and well combined.
I pour the mixture into the prepared pan, smoothing the top with a spatula. I refrigerate for at least 2 hours, or until the fudge is firm.
Once set, I lift the fudge out of the pan using the parchment overhang and cut it into squares.

Servings and Timing

Servings: 36 pieces
Prep time: 10 minutes
Chill time: 2 hours
Total time: Approximately 2 hours 10 minutes

Variations

Crunchy Texture: I sometimes use crunchy peanut butter or add chopped nuts for a bit of crunch.
Chocolate Swirl: I melt some chocolate chips and swirl them into the fudge before chilling for a chocolate-peanut butter combo.
Sea Salt Topping: A sprinkle of flaky sea salt on top adds a delightful contrast to the sweetness.

Storage/Reheating

I store the fudge in an airtight container at room temperature for up to 1 week.
For longer storage, I keep it in the refrigerator for up to 3 weeks.
The fudge can also be frozen for up to 3 months. I thaw it in the refrigerator before serving.

FAQs

Can I use natural peanut butter?

I prefer using regular creamy peanut butter because natural varieties can separate and affect the texture of the fudge.

How do I prevent the fudge from being too soft?

Ensuring the correct ratio of powdered sugar to peanut butter is key. If the fudge is too soft, I add a bit more powdered sugar.

Can I make this fudge dairy-free?

Yes, I use a dairy-free butter substitute to make the fudge dairy-free.

Is it necessary to refrigerate the fudge?

Refrigeration helps the fudge set properly, but once set, it can be stored at room temperature.

Can I double the recipe?

Absolutely. I double the ingredients and use a 9×13-inch pan for a larger batch.

Conclusion

This Microwave Peanut Butter Fudge is a quick and easy treat that I can make anytime I’m craving something sweet. Its creamy texture and rich peanut butter flavor make it a favorite in my household. Whether I’m making it for a special occasion or just because, this fudge never disappoints.