Microwave Peanut Butter Fudge Recipe

This Microwave Peanut Butter Fudge is truly a revelation—impossibly creamy, indulgent, and packed with sweet-and-salty peanut butter flavor. What sets it apart is how ridiculously easy it is to whip up: no stovetop fuss, no tricky candy thermometer, and absolutely no complicated steps. With just three pantry staples and a few minutes of your time, you’re rewarded with a luscious treat that melts in your mouth with every bite. Whether you’re craving a quick dessert fix or want to wow your friends and family, Microwave Peanut Butter Fudge is the no-stress, crowd-pleasing treat you’ll want to make again and again.

Ingredients You’ll Need

Believe it or not, you only need three simple ingredients to make this fudge, each bringing something special to the table. These staple pantry items come together for incredible results—no fancy equipment or technique required.

• Unsalted butter: The rich foundation that gives the fudge its irresistibly creamy and smooth texture—make sure it’s room temperature for easy melting.
• Creamy peanut butter: This adds bold peanut flavor and contributes to that velvety consistency, so go for your favorite brand for the best taste.
• Confectioners’ sugar: Also known as powdered sugar, this sweetens things up while helping the fudge set with its classic, slightly fudgy bite.

How to Make Microwave Peanut Butter Fudge

Step 1: Prep Your Pan

Line an 8×8-inch baking dish with parchment paper, making sure to leave some paper hanging over the edges. This extra bit acts like built-in handles, so lifting out the finished fudge is a breeze—no sticking or crumbling.

Step 2: Melt Butter and Peanut Butter

Grab a large microwave-safe bowl and add the butter and peanut butter. Microwave in 30-second bursts, stirring well each time. Continue until the mixture is completely melted and silky smooth—usually about 1 to 1.5 minutes in total. Stirring after every burst prevents scorching and ensures both elements are totally combined.

Step 3: Stir in the Sugar

Next, dump in the confectioners’ sugar. This is where the muscle comes in! Stir until everything is fully incorporated and the mixture becomes thick—don’t worry, that’s exactly what you want. Keep mixing until you see no more streaks of sugar.

Step 4: Press and Smooth

Scoop all that luscious fudge mix into your prepared pan. Place another sheet of parchment on top and use your hands to gently press and spread the mixture evenly to the corners. This ensures every piece is the same thickness. Remove the parchment and use the back of a spoon or spatula to smooth the surface if needed.

Step 5: Chill and Set

Pop the pan into the fridge and let your Microwave Peanut Butter Fudge set for about 2 hours. Once firm, simply lift it out using the parchment overhang, slice into squares, and get ready for some serious treat enjoyment!

How to Serve Microwave Peanut Butter Fudge

Garnishes

Jazz up your fudge by topping it with a light dusting of flaky sea salt, a sprinkle of mini chocolate chips, or even a scattering of chopped roasted peanuts. These little extras amp up both the flavor and the wow factor with almost zero effort.

Side Dishes

Pairing your Microwave Peanut Butter Fudge with a cold glass of milk is a classic for a reason, but you can also serve it alongside bowls of fresh raspberries, vanilla ice cream scoops, or your favorite fruit compote for a lovely contrast.

Creative Ways to Present

For a festive touch, pop individual pieces of fudge into mini cupcake liners and arrange them on a tiered platter. You can also stack squares in a mason jar and tie it with a ribbon for a homemade gift. Feeling fancy? Drizzle with a little melted chocolate for a peanut butter-cup vibe.

Make Ahead and Storage

Storing Leftovers

Keep your fudge extra fresh by storing it in an airtight container in the refrigerator. Layer squares with parchment paper to keep them from sticking together—your fudge will stay delicious and soft for about a week.

Freezing

Microwave Peanut Butter Fudge freezes like a dream! Place squares in a single layer in a freezer-safe container, adding parchment between layers. They’ll keep beautifully for up to three months; just thaw them in the fridge when a craving strikes.

Reheating

This fudge is best enjoyed chilled or at room temperature, so there’s no reheating required. If you prefer a softer, just-made texture, you can leave a piece out on the counter for 10-15 minutes before indulging.

FAQs

Can I use crunchy peanut butter instead of creamy?

Absolutely! Crunchy peanut butter adds a lovely bit of texture and a nutty bite to this Microwave Peanut Butter Fudge. It’s especially great if you love a little crunch in your candies.

What’s the best way to cut the fudge cleanly?

For the neatest squares, run your knife under hot water, wipe it dry, and slice with swift, confident motions. This helps you get tidy, professional-looking edges every time.

Can I make this fudge dairy-free?

Yes, you can swap the butter for a plant-based butter substitute—just make sure to choose one with a similar fat content for best results. The method remains the same and the results are still delicious.

Does this recipe work with natural peanut butter?

Natural peanut butter can make the fudge grainier or cause separation, since the oils aren’t as stabilized. For irresistibly smooth Microwave Peanut Butter Fudge, stick with classic creamy varieties.

How do I know when the fudge is set?

Your fudge is ready to slice and serve when it feels firm to the touch and pulls away from the parchment easily. If you’re unsure, let it chill a bit longer—colder fudge is easier to cut and holds its shape beautifully.

Final Thoughts

If you’ve never made fudge before or need a no-fail dessert in a pinch, you seriously owe it to yourself to try Microwave Peanut Butter Fudge. It’s quick, virtually foolproof, and brings that classic peanut butter comfort with minimal effort. I can’t wait for you to try it and share it with everyone you love!

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