2 Ingredient Fudge with Frosting and Peanut Butter

This 2 ingredient fudge tastes like a Reese's cup in fudge form. It’s rich, creamy, and melts in your mouth with the perfect balance of chocolate sweetness and nutty peanut butter flavor. Made with just frosting and peanut butter, this recipe proves that simple can still be decadent. There’s no candy thermometer, no stovetop stirring, and no complicated steps—just two ingredients, one bowl, and a few minutes in the microwave. It’s the kind of 2 ingredient fudge with frosting and peanut butter that’s perfect for last-minute holiday treats, potlucks, or gifting. If you’ve tried my Microwave Cookie or Oreo Mug Cake, you already know I’m all about quick, no-fuss desserts, and this microwave fudge has become my go-to whenever I need something sweet for a crowd that takes almost no effort to make.

Why This is The Best 2 Ingredient Fudge Recipe

Chocolate and peanut butter are one of those flavor combinations that never miss—and this 2 ingredient fudge recipe proves it. Whenever I’m craving something sweet and chocolatey, this is the dessert I make. It blends soft, creamy peanut butter with rich chocolate frosting to create a melt-in-your-mouth fudge that tastes like it took hours to make but comes together in minutes.

It’s honestly hard to believe that just two simple ingredients—frosting and peanut butter—can create such smooth, creamy, and decadent fudge. It’s pure magic. I’ve made plenty of quick fudge recipes over the years, but this one is hands-down the easiest. If you love this version, you’ll definitely want to try my other 2 ingredient fudge made with Nutella and chocolate chips next!

The beauty of this 2 ingredient fudge with frosting and peanut butter is how effortless it is. It takes less than five minutes to prep, uses only one bowl, and the microwave does all the work—no candy thermometer or stovetop needed. Plus, cleanup is practically nonexistent.

I love making this chocolate peanut butter fudge when I’m hosting, need a last-minute dessert, or just want to keep something sweet in the fridge for the week. It’s especially clutch during the holidays when oven space is limited—it’s a no-bake fudge recipe that chills perfectly while you focus on the rest of your cooking. Just like my no-bake chocolate oat cookies, it’s the kind of dessert that never fails to impress with minimal effort.

Don't just take my word for it though, here's what one of our readers who made the fudge had to say about it:

Nothing beats this fudge if you are looking for a quick and easy dessert that is out of this world yummy!!! Highly recommend making it! -Lisa

Ingredients

• 16 oz. Jar of Peanut butter: your favorite peanut butter will work great here. I prefer using Jif peanut butter. You can also use other nut butter, like almond butter, sunflower seed butter, or cashew butter.
• 16 oz. Tub of Chocolate frosting: I used the Betty Crocker Rich & Creamy Milk Chocolate Frosting. Dark chocolate frosting and vanilla frosting are delicious, too.

It's seriously crazy that just a couple of ingredients can make such a delicious dessert! And it literally tastes like a Reese's cup, just like this no bake peanut butter pie.

Oh, and if you want to try some easy dessert recipes that use only a few ingredients, check out this Nutella mug cake and M&M sugar cookies next.

How To Make 2 Ingredient Fudge

Step 1: Microwave the Peanut Butter and Frosting

First things first, put the frosting and peanut butter into a large microwave-safe bowl and microwave them for 1 minute. Take the mixture out and give it a good stir until the frosting and peanut butter start to combine.

Next, microwave it for an additional minute and stir until you have a fully combined, thick chocolate sauce-like mixture. Make sure you do this in two 1-minute intervals—trying to heat it for two straight minutes will burn the ingredients.

Step 2: Chill the Fudge

Now line a baking tray or loaf pan with parchment paper. A 9x9 or 8x8 size works well, but really any size will work! The size of the pan will just determine the thickness of the fudge.

Next, pour the peanut butter chocolate fudge mixture into the tray or pan and evenly smooth out the top with a rubber spatula. Then, you can put the fudge in the refrigerator for about 1-2 hours, or until it has set.

Step 3: Serve

Once the fudge has set, remove it from the fridge to thaw for a couple of minutes—it won't take long for the fudge to soften up. Cut the peanut butter chocolate fudge into any-sized squares you want and enjoy!

Expert Tips for Perfect 2 Ingredient Fudge

• Use creamy peanut butter. For smooth, velvety 2 ingredient fudge, stick with classic creamy peanut butter (like Jif or Skippy). Natural peanut butter with oil separation can cause the fudge to turn grainy or oily as it sets.
• Microwave in short intervals. Heat in 1-minute bursts, stirring in between, until the peanut butter and frosting are completely combined and glossy. Microwaves vary, so it may take 2–3 minutes total. Stirring after each interval ensures even melting and prevents scorching.
• Don’t overheat the mixture. Overheating can cause the peanut butter to seize or the frosting to separate. Stop microwaving as soon as everything is smooth and mixable—residual heat will finish the job.
• Line the pan properly. Use parchment paper or foil with overhanging edges for easy removal and perfect squares. This also prevents sticking, so your fudge slices cleanly without crumbling.
• Spread evenly before chilling. Once the mixture is in the pan, use a spatula to smooth the top for an even thickness. Lightly tapping the pan on the counter removes air bubbles and helps the fudge set evenly.
• Let it chill completely. Refrigerate for at least 1–2 hours or until the fudge feels firm to the touch. If you cut too early, it may crumble or lose shape. Patience pays off—perfectly set fudge cuts into clean, sharp squares.
• Cut clean squares. Warm a sharp knife under hot water, then dry it before slicing. Wiping the blade between cuts keeps the edges neat and prevents smearing.
• Add toppings or layers. For a gourmet touch, sprinkle sea salt, chopped peanuts, or crushed pretzels on top before chilling. Or, pour half the fudge into the pan, add a layer of mini marshmallows or caramel, then pour the rest over for a layered effect.
• Serve at the right temperature. Let the fudge sit at room temperature for 5–10 minutes before serving. It softens slightly, giving that melt-in-your-mouth texture while staying firm enough to hold its shape.
• Make it seasonal. Swap the frosting flavor to match the occasion—chocolate for classic, vanilla for birthday parties, cream cheese frosting for holidays, or maple frosting for fall. Add colored sprinkles or candy on top to make it festive for any event.

2 Ingredient Fudge FAQS

How long does 2 ingredient fudge take to set?

This 2 ingredient fudge typically takes about 1–2 hours to fully set in the refrigerator. For faster results, you can place it in the freezer for about 30–40 minutes, but be careful not to freeze it solid—you want it firm but still creamy when sliced. For the best texture, let it sit at room temperature for 5–10 minutes before cutting.

How do I store leftover chocolate peanut butter fudge?

Once set, store your chocolate peanut butter fudge in an airtight container. It will keep fresh at room temperature for up to 5 days or in the refrigerator for up to 2 weeks. For the perfect consistency, keep it chilled and bring it to room temperature just before serving. This prevents the peanut butter from becoming too soft or oily.

Can I freeze fudge? 

Yes! This fudge freezes really well. To freeze, cut it into squares and layer the pieces with parchment paper in an airtight, freezer-safe container or zip-top bag. It will last for up to 3 months. When ready to enjoy, thaw the fudge overnight in the fridge or for about 30 minutes at room temperature before serving—it’ll taste just as creamy as the day you made it.

Can I make this fudge with other flavors of frosting?

Absolutely! This recipe works well with dark chocolate, vanilla, cream cheese frosting, coconut pecan, salted caramel, or even maple. 

What can I add to this fudge?

There are so many delicious ways to customize this 2 ingredient fudge with frosting and peanut butter. Try stirring in: chopped nuts (like pecans, walnuts, or peanuts) for crunch, crushed Oreos or cookies for texture and flavor, mini marshmallows or graham crackers for a s’mores-inspired twist, sea salt flakes for a salted chocolate peanut butter fudge version, or festive sprinkles for holidays or parties. You can also drizzle melted white chocolate or top the fudge with crushed pretzels for a sweet-salty combo.

More Easy Dessert Recipes

If you liked this fudge, we have a ton of other easy dessert recipes on the blog you can try next! 

Check all of these out:

• Sweetened condensed milk fudge
• Salted caramel fudge
• Peanut butter fudge
• Fantasy fudge
• Oreo balls
• Sugar cookie dough

For more easy dessert recipes, be sure to check out our Instagram, TikTok, and YouTube channels.