Microwave Peanut Butter Fudge

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This easy microwave peanut butter fudge recipe is going to become one of your favorite desserts! Finished off with a creamy texture that is accented by buttery and sweet flavors, this easy fudge recipe is delicious and perfect for any time of year.

Sweet and made within minutes, this creamy peanut butter fudge is one of the best dessert recipes! It’s super easy to make and tastes great every single time. Made with unsalted butter, powdered sugar, vanilla, and natural peanut butter, you will not be able to get enough of this delicious microwave peanut butter fudge.

The options are limitless with this quick peanut butter fudge because you can add sea salt flakes, chocolate ganache, shredded coconut, and so much more: whatever you want! This simple recipe comes together within 15 minutes and will totally satisfy your sweet tooth.

Just like some traditional fudge recipes, you’ll want to make sure you make this fudge for your favorite holidays and occasions. This creamy fudge is great for gift-giving and is perfect for your dessert table!

👩🏽‍🍳 Why You’ll Love This Recipe

• Gluten-Free: You’ll love this gluten-free dessert! You don’t have to worry about wheat in this recipe.
• Easy To Make: With only 4 ingredients (not including salt) and simple, fool-proof steps, this homemade peanut butter fudge recipe is perfect for when you don’t have a lot of time to make a dessert but want to keep a dazzling wow factor.
• Versatile: This is the perfect treat for the holiday season and is great for the peanut butter lover in your life, but it also works whenever you’re craving something sweet! You can also customize it in a variety of ways!
• Prepared In Minutes: Since homemade fudge is prepared in the microwave, it’s almost effortless! Just a few trips back and forth to the microwave and fridge. The prep time is so easy!
• Delicious Treat: Rich peanut butter is combined with butter and sugar for a nutty and sweet combination. The powdered sugar adds just enough sweetness to one of the easiest traditional fudge recipes out there!

🥘 Ingredients

This microwaveable peanut butter fudge uses only a handful of simple ingredients, easily found at most grocery stores! You really won’t need much for this easy fudge.

• Butter: You can use either salted or unsalted butter for this easy peanut butter fudge in the microwave. Both are fine!
• Peanut Butter: I used creamy peanut butter, but you could also try crunchy peanut butter for some additional textures.
• Powdered Sugar: You’ll want to make sure the powdered sugar is sifted! The powdered sugar adds just the perfect amount of sweetness needed for this pb microwave fudge.
• Vanilla Extract: What’s a dessert recipe without vanilla extract? The vanilla extract is well-rounded and balanced, and brings out the peanut butter flavor in this easy recipe.

🍲 Ingredient Substitutions

• Extract: Try using a nutty extract like almond or add another flavor that you like. 
• Sugar: Use an alternative low-carb powdered sugar instead of regular powdered sugar.

🔪 How To Make Microwave Peanut Butter Fudge

Here’s how to make this easy peanut butter fudge recipe. For more detailed instructions and nutrition facts, see the recipe card below.

Prep & Mix: Chop the butter into small pieces. Next, mix peanut butter and butter in a large microwave-safe bowl. (I used a 4-quart, large glass bowl).

Microwave: Place the bowl in the microwave and microwave fudge on high heat in 30-second intervals until melted. Stir and repeat.

Note: learn more about cooking in a microwave airfryer combo in my complete guideline.

Add Sugar: Carefully remove the bowl from the microwave and add the powdered sugar, salt, and vanilla extract. Stir with a wooden spoon until combined.

Move To Baking Dish: Line an 8-inch square pan with parchment or wax paper and transfer the peanut butter mixture into the pan or baking dish.

Refrigerate: Next, place the microwave pb fudge mixture in the refrigerator for at least two hours until the fudge sets. Finally, cut the fudge into 20 small squares (approx 1-inch pieces). Enjoy!

Chocolate and peanut butter is a winning combination! If you love the flavor of Reese’s peanut butter cups, you can drizzle dark chocolate over this delicious peanut butter fudge to make dark chocolate peanut butter fudge!

💭 Expert Tips

• Use Kitchen Tools For Precision: Use a candy thermometer if you need to make sure the liquid is warm enough. Also, use a sharp knife when cutting the fudge into small or large pieces.
• Melt Fully: For best results, make sure the peanut butter and butter mixture is melted all the way, but don’t microwave it longer than that or your no-bake peanut butter fudge will become tough.
• Be Careful: Make sure to use caution when heating the peanut butter and butter in the microwave. Don’t burn yourself!
• Snag A Good Piece: The corner pieces are the best part!

📖 Variations

You can customize this basic recipe in so many different ways! Here are some of our favorite ways to change things up:

• Enhance Flavors: Add some vanilla frosting if you prefer to step this recipe for microwave peanut butter fudge up a notch. You could also stir in some sweetened condensed milk for a creamy version. Don’t have ganache? Just melt some dark or milk chocolate chips (or any type of chocolate chip) and drizzle the melted chocolate over the fudge! White chocolate would also taste good here.
• Additions And Toppings: Feel free to throw in some sea salt flakes, shredded coconut, chopped nuts, or chocolate chips to the top of the fudge for bonus flavors. This fudge would also taste good with a little brown sugar added.

🍽 Serving Suggestions

This quick dessert can be served with a simple glass of milk (or your favorite dairy-free alternative), or you can make it even more decadent with some sides or toppings. 

• Ice Cream: Serve this peanut butter microwave fudge recipe alongside vegan ice cream in any number of flavors. 
• Drinks: Make a hot cup of coffee or sip on a vegan coquito. 
• Pudding: Serve the fudge alongside flaxseed pudding.
• Caramel: Drizzle a caramel sauce over top like the one in this salted caramel cheesecake recipe.  

🙌 Dietary Adaptations

• Vegan And Dairy-Free Option: For a vegan version, you could try using vegan butter with vegan friendly sugar.
• Keto Option: For a keto version, use powdered Swerve instead of regular sugar.
• Peanut-Free Option: Experiment with using other nut or seed butters in this super easy pb fudge like almond butter or sunflower seed butter.
• Reduce Sugar And Carbs: If you like a less-sweet fudge, cut the amount of sugar in half. Then each piece of fudge will only have 219 calories and 7.5 grams of sugar!

🫙 Storage Directions

• Room Temperature: Even though fudge contains perishable ingredients (butter/dairy), the sugar helps to make the fudge more shelf stable. If you keep these peanut butter cubes in an airtight container, layered with aluminum foil or parchment paper, and keep it in a cool dark space (like a cupboard or the pantry), it will last for about 1 week at room temperature.
• To Refrigerate: Keep the pieces of fudge in an airtight container or wrapped in plastic wrap in the fridge for up to 2 weeks.
• To Freeze: Fudge freezes well! Just place the fudge in a freezer-safe storage container or bag and freeze for up to two to three months.

❓Recipe FAQs

🍪 More Easy Dessert Recipes!

• Flourless Brownies
• Chocolate Pudding
• Strawberry Blueberry Pie
• Cherry Fritters
• Chocolate Banana Ice Cream
• Peanut Butter Eggs
• Vegan Nutella
• Low Sugar Desserts

📋 Recipe Card