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4 Ingredient Peanut Butter Fudge

August 24, 2017

This is a quick and easy peanut butter fudge recipe that’s ready in only 5 minutes. If you have guests arriving soon, or a peanut butter craving, this is the recipe for you!

4-Ingredient Peanut Butter Fudge- So Good!

Last time I visited my brother in London, he took a couple of days off work and we went to see Bath, a unique city in England. One of the recommended shops there was the San Francisco Fudge Factory, and I immediately spotted its pink logo when we got there. I pretty much tasted every flavor they had and was so impressed with how good it was. I’m usually not a fudge fan because I think it’s too sweet, but they had some salty flavors that I liked such as salted caramel, coffee, and peanut butter.

This is a classic recipe for homemade peanut butter fudge, and although it’s sweet like fudge should be, it’s not overwhelming so, and is a bit salty and creamy because of the peanut butter. It keeps well so I often give it as a gift, especially around the holidays.

4-Ingredient Peanut Butter Fudge- So Good!

How to make peanut butter fudge

This recipe is so easy to make and uses only a few simple ingredients: butter, peanut butter, powdered sugar, and vanilla extract. I like to add a bit of salt to cut some of the sweetness, but it’s optional.

You’ll need to melt butter and peanut butter in the microwave, then add the rest of the ingredients. Easy! Chill the fudge in the fridge until it’s set, then cut into squares. I cut mine into small squares because they are rich.

4-Ingredient Peanut Butter Fudge- So Good!

More Peanut Butter Recipes:

5 from 7 votes
4-Ingredient Peanut Butter Fudge- So Good!
Peanut Butter Fudge
YIELD: 40 small squares

  • 1 cup (2 sticks/227 g) unsalted butter
  • 1 cup (250 g) creamy peanut butter
  • 3 and 1/2 cups (400 g) powdered sugar
  • 1 teaspoon pure vanilla extract
  • pinch of salt , optional
  1. Line a 8*8-inch pan with aluminum foil. Set aside.
  2. Place butter and peanut butter in a medium heatproof bowl, and microwave in 1-minute intervals, stirring the mixture in between each interval, until melted and completely smooth. Add vanilla and salt if using.
  3. Add powdered sugar and stir with a wooden spoon. The mixture will become thick. Press into the prepared pan and place in the fridge for 2-3 hours until completely set. cut into 40-50 squares, or any size you want.

  4. Store fudge in an airtight container in the fridge for up to a week.

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  • Reply
    August 24, 2017 at 9:18 pm

    I’ve been looking for a super creamy peanut butter fudge recipe. Maybe this is it!

    • Reply
      Anita Miller
      November 22, 2019 at 2:45 pm

      Ive mafe this before and its so delicious, it melts in your mouth!

  • Reply
    September 4, 2017 at 2:32 pm

    Waw, they look very awesome. They remind me of an Indian sweets … kind of 🙂

  • Reply
    September 3, 2018 at 6:36 am

    Hi Shiran,
    these looks really yummy and simple. I can imagine them beeing quite sweet, are they? As well, how do they change their texture when kept at room temperature?

    • Reply
      September 3, 2018 at 9:29 am

      Hi Liene, fudge is a sweet candy because of the amount of sugar it contains. That’s how it gets its texture. You can store it at room temperature for up to a week.

    • Reply
      Deniese R Jones
      December 7, 2021 at 7:53 pm

      Is it supposed to look oily on top when you put in fridge?

  • Reply
    Alice M. Rigelman
    December 6, 2018 at 12:27 pm

    This looks easy and good i am going to make it for a christmas dinner

  • Reply
    Jen Rosner
    December 15, 2018 at 8:03 pm

    This fudge was super simple to make (I thought surely it can’t be this easy..) and it was devoured by my family. They keep asking me to make more and I also plan to give away some as gifts for Christmas. So yummy!

  • Reply
    December 26, 2018 at 4:37 pm

    Can I substitute crunchy peanut butter to give it more of well….a crunch?

    • Reply
      February 6, 2019 at 6:48 am

      Yes you can!

  • Reply
    Maranda New
    December 30, 2018 at 8:03 pm

    Just made some its delicious !!

  • Reply
    Patrick Narango
    August 5, 2019 at 5:26 pm

    JUST MADE THIS!!!! wow!!!! ITS CREAMY AND JUST THE RIGHT CONSISTENCY !!!!!made 25 nice size…the officers loved it!!!!THANK YOU!!!!!

  • Reply
    Susan Jordan
    December 27, 2019 at 11:32 am


  • Reply
    Amy Martin
    July 18, 2020 at 6:34 pm

    So good and easy to make

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