squares of Old Fashioned Peanut Butter Fudge stacked up on a marble counter. A red baking dish and plates can be seen in the background
Desserts Recipes Snacks

Old-Fashioned Peanut Butter Fudge

My Grandma’s Old Fashioned Peanut Butter Fudge recipe is simple, quick, and only takes 4 ingredients! It’s rich, creamy, and melt-in-your-mouth-DELICIOUS.

It’s a perfect treat to share with friends. (Or keep it all to yourself. I won’t judge.)

Whenever I’m invited to bring food to a function, event, or get-together, I bring this Homemade Peanut Butter Fudge to the party. There are some groups I’m a part of that will actually request I bring it. The baking dish is always left with just a few crumbs, and everybody is asking for the recipe by the end.

Be prepared for everyone to absolutely freakin’ love it! 

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squares of Old Fashioned Peanut Butter Fudge stacked up on a marble counter. A red baking dish and plates can be seen in the background

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Now, before I give you the recipe I need to warn you about something: grandma did not come to play, y’all. This recipe is full of powdered sugar and butter. We make no apologies.

This is not a health-food/wellness blog. This fudge is not diet or figure-friendly. It is sweet and full of fat. You’re just gonna have to deal. ????

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Key Ingredients

  • powdered sugar
  • peanut butter
  • vanilla extract
  • butter

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The Ingredients for Old Fashioned Peanut Butter Fudge laid out on the counter: Jif Peanut Butter, powdered sugar, butter, and vanilla extract

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Necessary Equipment

  • medium-sized pot
  • 9×9 baking dish
  • measuring cups
  • wooden spoon

How to Make Old-Fashioned Peanut Butter Fudge

Author’s Note: exact measurements and detailed instructions are in the recipe card at the bottom of the post.

Step 1: Melt the REAL buttah and your favorite peanut butter (ahem, Jif) in a saucepan over medium heat, stirring occasionally.

This should only take about 1-3 minutes depending on how hot your stove runs. Turn off the heat and take the peanut butter mixture off of the burner. It should still be lumpy when you take it off the heat. It’s okay. You’re doing it right. Trust the process. The residual heat will eventually melt all of the butter and peanut butter together.

Step 2: Add in one teaspoon of vanilla extract. Stir to combine — with a wooden spoon, grandma says. I don’t know why we have to use the wooden spoon, just go with it. 

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Step 3: Gradually add in 12 ounces, or approximately 2 cups, of Confectioners Sugar into the melted peanut butter mixture. You read that correctly. I know it’s a lot. I tried to warn you. This is what makes it good!

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The mixture will be lumpy with each addition of powdered sugar. It’s normal. Eventually, the fudge will become pretty thick, firm, and almost stiff — but it should still look creamy. But it will not be smooth.

Step 4: Transfer the fudge into an 9×9 baking dish. Spread it out in the pan so that the fudge is nice and flat.

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peanut butter fudge being smoothed out into a red baking dish

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Pro-tip: Press a paper towel into the fudge to soak up any excess grease. This is a really crucial step if you’re using a brand other than Jif as other brands tend to be oilier.

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a white paper towel being pressed into the fudge to soak up excess oil.

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Step 5: Allow the fudge to chill in the fridge for an 2hours or until firm, cut into squares, and serve.

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Old Fashioned Peanut Butter Fudge cut into squares in a red baking dish

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I love eating the Old Fashioned Peanut Butter Fudge when it’s just set up and yet still warm. The best.

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squares of Old Fashioned Peanut Butter Fudge stacked up on a marble counter. The top square of fudge has a bite taken out of the top piece. A red baking dish and plates can be seen in the background

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Mix Ins and Variations for Old Fashioned Peanut Butter Fudge

  • pour some chocolate ganache (milk or dark chocolate) on the fudge and top with flaky sea salt
  • stir in chopped peanuts for a crunchy version of peanut butter fudge
  • swirl some of your favorite jelly into the fudge before chilling
  • crumble some fudge on top of ice cream or into a milkshake
  • top with chocolate ganache and some crushed peppermint
  • swap butter for vegan butter and make this fudge vegan
  • top the peanut fudge with melted white chocolate

Q & A Section

How should I store Old Fashioned Peanut Butter Fudge?

You can keep the Peanut Butter Fudge in the fridge or on the counter (after it has set-up), but be sure to keep it covered with foil or plastic wrap. 

It should keep for about a week, butttt I’m not sure how long exactly because it doesn’t last more than two days in my house. 

If you get sick from eating bad fudge, it ain’t my fault. Just don’t have leftovers. Wink, wink.

Can I freeze the Peanut Butter Fudge?

Yes, you can store the Peanut Butter Fudge in the freezer for a few months. Allow the fudge to cool and set completely, cut it into squares, and then wrap each piece in plastic wrap. Place the individual squares into an air-tight container and be sure to date it. 

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squares of Old Fashioned Peanut Butter Fudge stacked up on a marble counter. A red baking dish and plates can be seen in the background

Old-Fashioned Peanut Butter Fudge

My grandma’s old fashioned peanut butter fudge recipe is simple, quick, and only takes 4 ingredients!
5 from 1 vote
Cook Time 10 mins
Additional Time 1 hr
Total Time 1 hr 10 mins
Course Desserts
Cuisine American
Servings 12

Ingredients
  

  • 1 stick of butter
  • 1 cup of peanut butter
  • 1 teaspoon of vanilla extract
  • 12 ounces or 2 cups of powdered sugar

Instructions
 

  • Melt one stick of REAL butter and 1 cup of your favorite peanut butter in a saucepan over medium heat, stirring occasionally. Add in one teaspoon of vanilla extract. Stir to combine.
  • Gradually add in 12 ounces, or approximately 2 cups, of Confectioners Sugar into the melted peanut butter mixture. Make sure the mixture is completely smooth before adding more powdered sugar. Eventually, the fudge will become pretty thick, but it should still look creamy.
  • Transfer the fudge into an 9×9 baking dish. Spread it out in the pan so that the fudge is nice and flat. Press a paper towel into the fudge to soak up any excess oil.
  • Allow the fudge to chill in the fridge for an 2 hours or until firm, cut into squares, and serve.
Keyword Old Fashioned Peanut Butter Fudge

Did You Make My Grandma’s Old Fashioned Peanut Butter Fudge Recipe?

Let me know how much you loved it by leaving a rating or comment down below. Share a picture of this recipe on Facebook or Instagram with #servingupspice! 

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