This old fashioned peanut butter fudge recipe is light and creamy, and amazingly simple! No one would ever guess that it only requires four ingredients, one pot, and a few minutes of cooking time.

When I was a little girl, my grandmother’s sister used to make a big batch of peanut butter fudge every year during the holidays. I hadn’t thought it was possible for anything to taste that good! It felt like I’d died and gone to a sweet, peanut-buttery heaven where I danced among unicorns and fluffy white clouds.

I envisioned the peanut butter fudge-making process as being something complex, requiring candy thermometers and special sugars, and perhaps a little bit of fairy dust.

So when I came across this super easy peanut butter fudge recipe in a family cookbook years later, I was shocked to say the least.

  • There were only four simple ingredients!
  • Only one pot!
  • And the instructions were only two sentences long!

I was so excited to know it was that simple to replicate the fudge I’d fantasized about for so many years. Sure enough, the batch I made came out every bit as delicious as the one from my grandma’s sister, and now I knew I could have my favorite fudge whenever my heart desired.

Soon I became famous amongst my friends for this delightful peanut butter fudge. And, just like my great aunt, I never let on how easy it was to make.

Just a container of marshmallow fluff (or marshmallow creme), some good old fashioned creamy peanut butter, milk, and sugar. The secret’s out, and I can’t wait for y’all to make this yourselves.

Ingredients prepped for peanut butter fudge
Spreading the fudge into a dish to cool

Best Peanut Butter for Peanut Butter Fudge:

As much as I love natural peanut butter, you don’t want to use it in this recipe. Stick with traditional creamy peanut butter (I almost always use Jif).

Fudge-making Tip:

The fudge-making process works best if you put the fluff and peanut butter into bowls (as pictured above) before adding them to the milk/sugar mixture. That way you can add them quickly and make sure everything melts together without separation.

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4.95 from 18 votes
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Servings: 20

The Best and Easiest Peanut Butter Fudge Recipe

Easy peanut butter fudge made with marshmallow creme (fluff).


  • 2 cups sugar
  • 7 oz marshmallow fluff
  • 12 oz creamy peanut butter
  • 1/2 cup whole milk


  • Butter a small pyrex or 8×8 baking dish and set aside.
  • In a medium saucepan (preferably non-stick), combine the milk and sugar, and bring to a boil. Continue to boil, stirring constantly, for three minutes.
  • Remove the pan from the heat and add the peanut butter and marshmallow fluff. Stir until well combined.
  • Spread the fudge into the baking dish. Allow to cool to room temperature, and then refrigerate

Nutrition Facts

Calories 211kcal (11%)Carbohydrates 32g (11%)Protein 4g (8%)Fat 8g (12%)Saturated Fat 1g (6%)Sodium 80mg (3%)Potassium 118mg (3%)Fiber 1g (4%)Sugar 27g (30%)Vitamin A 10IUCalcium 14mg (1%)Iron 0.3mg (2%)
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