This 3-ingredient peanut butter fudge is smooth, creamy and easy to make in the microwave in only 3 minutes. One of my favorite recipes to make during the holiday season!

3 ingredient peanut butter fudge cut into squares on the counter.

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3 Minute Easy Peanut Butter Fudge

If you’ve ever been intimidated by making fudge, this 3 ingredient peanut butter fudge will change your mind. It’s completely foolproof and turns out smooth, creamy, and perfectly sweet every time. No candy thermometer needed and it comes together in just minutes.

It’s a quick and easy recipe that comes from my grandmother and one I always make around the holidays to add to dessert trays or give as gifts. For more homemade candy, try my 3-ingredient chocolate fudge, microwave fudge or microwave caramels too!

Why You’ll Love This Recipe

  • Perfectly balanced flavor: The peanut butter adds a rich, nutty taste with just a touch of salt that keeps the fudge from being overly sweet.
  • Quick yet decadent: Made with only three simple ingredients, this recipe comes together fast but still delivers that creamy, old-fashioned fudge texture and flavor.

How to Make Peanut Butter Fudge

Showing how to make peanut butter fudge.
  1. Combine the 3 ingredients. Add the white chocolate, sweetened condensed milk and peanut butter in a microwave safe bowl.
  2. Microwave for 1 minute. Then give it a good stir until smooth.
  3. Pour into the pan. Then spread it out with a spatula and refrigerate until firm.
  4. Slice and serve. Share with your friends.

Recipe Tips

  • Use creamy peanut butter: For the smoothest texture, use a regular creamy peanut butter like Jif or Skippy. Avoid natural peanut butter with oil separation, which can make the fudge too soft or greasy.
  • Melt gently: When melting the ingredients in the microwave, pause and stir often until smooth. Overheating can cause the mixture to seize or become grainy.
  • Add a chocolate twist: Turn it into chocolate peanut butter fudge by melting milk or dark chocolate chips until smooth, then pouring over the peanut butter layer. Let it cool completely before cutting for an easy layered treat.
  • Wrapping tip for gift giving: This sweet, creamy fudge makes the perfect holiday gift. Cut into rectangles, wrap each piece in wax paper, and twist the ends. Place them in a box or mason jar tied with ribbon for a simple and adorable presentation.
Stack of easy peanut butter fudge on serving plate.

More fudge and candy recipes to try include these chocolate truffles, eggnog fudge and my rocky road fudge recipe.

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peanut butter fudge recipe

3 Ingredient Peanut Butter Fudge

5 from 12 votes
Recipe by: Jamielyn Nye
Prep Time: 1 minute
Cook Time: 2 minutes
Chill time: 45 minutes
Total Time: 3 minutes
Servings: 36
This 3-ingredient peanut butter fudge is smooth, creamy and easy to make in the microwave in only 3 minutes. One of my favorite recipes to make during the holiday season!
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Ingredients 

Instructions

  • Prep. Line a 8×8" pan with parchment paper or foil. Set aside. Place 10 ounces white chocolate, 1 cup sweetened condensed milk and 1/2 cup creamy peanut butter in a microwave safe bowl. Microwave for 1 minute. Stir for 15 seconds. If there's still chunks microwave another 15-30 seconds. Stir until smooth. Add in vanilla if desired. 
  • Melt ingredients together. Place 10 ounces white chocolate, 1 cup sweetened condensed milk and 1/2 cup cream peanut butter in a microwave safe bowl. Microwave for 1 minute. Stir for 15 seconds. If there's still chunks microwave another 15-30 seconds. Stir until smooth. Add in vanilla if desired. 
  • Pour. Pour the fudge into the pan and then smooth out with a spatula. Try to move quickly as it tends to thicken fast. Place in the refrigerator until firm.
  • Cut and serve. Once the fudge has set, cut into 1-inch squares.

Last step: Please leave a comment and rating after you make the recipe.

Notes

Storage: Stored in an airtight container on the counter for 5-7 days. This fudge will stay fresh 2-3 weeks in the refrigerator and 3+ months in the freezer.

Nutrition

Serving: 1square, Calories: 90kcal, Carbohydrates: 9g, Protein: 2g, Fat: 5g, Saturated Fat: 2g, Cholesterol: 4mg, Sodium: 34mg, Potassium: 77mg, Sugar: 9g, Vitamin A: 25IU, Vitamin C: 0.2mg, Calcium: 41mg, Iron: 0.1mg

Nutrition provided is an estimate. It will vary based on specific ingredients used.

FAQs

Why is my fudge grainy?

Grainy fudge can happen when the mixture is overheated, especially if it’s melted too long in the microwave without stirring often. Always melt slowly and stir frequently until smooth to keep the texture creamy.

Can I add mix-ins or toppings?

Definitely! Stir in chopped peanuts for crunch, swirl in melted chocolate, or sprinkle sea salt on top. You can even add festive sprinkles for the holidays.

How do I store peanut butter fudge?

If stored in an airtight container, this fudge will stay fresh on the counter for 5 to 7 days. It will also keep in the refrigerator for about 2 to 3 weeks. I love to eat it cold, so storing it in the fridge is my personal preference.

Can I freeze it?

Yes! Wrap the fudge in foil and then place it in an airtight container. It will keep in the freezer for up to 3 months and lasts even longer if you freeze it within the first few days of making it. When ready to enjoy, remove the desired pieces and let them thaw on the counter for 30 to 60 minutes.

Easy peanut butter fudge.