Easy Instant Pot Peanut Butter Fudge

Easy Instant Pot Peanut Butter Fudge

Last Updated on May 25, 2020 by Tina

Instant Pot Peanut Butter Fudge is so delicious that I keep making it over and over! The constant heat temperature helps to make sure that it is perfect each time. It also uses common ingredients that you probably have in your fridge and pantry to make this wonderful confection.


peanut butter fudge on plate in front of christmas cards and ornaments

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Why do we love fudge on vacation?

The rumor is fudge is thought to have been created by accident in America around 1886. The word “fudge” was around long before this delicious candy, and meant to fit together in a clumsy manner. Either way this happy accident has been a staple of coastal tourist towns and holiday celebrations for years.

Fudge became a college fad in the late 19th century when a Vassar college student made about 30 pounds for a senior auction. Then it spread like wildfire among many colleges. Fudge can be a little tricky to make at home, so it became a special indulgence on vacation for folks.

The little shops that sprang up in coastal tourist towns provided a glimpse on how to make fudge as people watched it being made in large pots then spread onto huge marble slabs for forming and cooling. If you would like to read more about this head over to Chowhound.

Helpful tips for making fudge

This peanut butter fudge recipe is quick and easy to make plus it’s pretty fool proof. The Instant Pot is perfect for making this as the saute function keeps the temperature pretty even, and brings the mixture to a boil in a flash.

  • Ready all required equipment
  • Measure ingredients in advance
  • Line pan with foil then set aside
  • Use only real butter or margarine
  • Do not double the recipe

Cooking the fudge

Prepare a 9 x 9 rectangular pan by lining with either foil or parchment paper. I prefer to use foil.

Add to the Instant Pot the butter, brown sugar, and milk. Set the cooker to saute (normal). The butter will melt which will allow you to stir to combine the ingredients.

overhead view of Instant Pot with melted butter, brown sugar, and peanut butter

Stir constantly until the mixture comes to a boil. Once it has come to a boil let it do it’s thing for two minutes without stirring.

overhead view of peanut butter fudge in the Instant pot that has come to a boil with wooden spatula resting inside

Finishing the candy

Carefully remove the inner pot with oven mitts and set on a protected surface. This could be your stove top, or another oven mitt. Immediately stir in the vanilla and peanut butter until melted.

overhead view of cooked peanut butter fudge in the instant pot liner with peanut butter and wooden spatula

Add the confectioners sugar and stir until completely combined and smooth.

overhead view of instant pot liner with peanut butter fudge and confectioners sugar

Pour the fudge mixture into the prepared pan and smooth the top. Set aside until completely cooled.

overhead view of fudge cooling in a rectangular metal pan lined with foil

Once the fudge has completed cooled remove the fudge from the pan by lifting it up by the foil. Turn over onto a cutting board, and cut into squares by making large vertical and horizontal cuts that will result in roughly 1 1/2″ inch pieces.

Store in an airtight container, plastic bag, or plastic wrap for up to two weeks. Fudge can be stored on the counter like this or the refrigerator.

Can fudge be frozen?

Yes. Fudge can be frozen, and last a good long time without drying in the freezer. Either wrap the uncut block, or individual pieces in plastic wrap. Place in a freezer bag, date, and store for up to six months.

If you enjoyed this you may like Instant Pot Spiced Peach Crisp, Double Coconut Cream Pie, or Instant Pot Golden Oreo Chocolate Chip Cheesecake!

cut peanut butter fudge on white place on top of quilted christmas ornaments in front of christmas cards

Instant Pot Peanut Butter Fudge

Easy to make peanut butter fudge that is great for holidays and stay-cations! Combine just a few pantry staples to make this delicious confection. #mondayismeatloaf #fudge #fudgerecipe #instantpotfudge
5 from 1 vote
Print Pin Rate
Course: Dessert
Cuisine: American
Keyword: how to make fudge in the instant pot, instant pot fudge, instant pot peanut butter fudge, peanut butter, peanut butter fudge, pressure cooker fudge
Prep Time: 3 minutes
Cook Time: 15 minutes
Servings: 36 pieces
Calories: 152kcal
Author: Tina


  • 1/2 cup butter I used unsalted, use real butter for best results
  • 2 cups brown sugar
  • 1/2 cup milk
  • 1 tsp vanilla
  • 3/4 cup peanut butter creamy
  • 16 ounces confectioners sugar roughly 3 1/2 cups, or a 16 ounce bag


  • LIne a 9 x 9 pan with foil or parchment paper and set aside.
  • Put the butter, brown sugar, and milk in the Instant Pot then set to saute. Stir constantly until the mixture comes to a boil. Once at a boil, let alone to boil for two minutes.
  • Remove the Instant Pot liner to a protected surface like a stove or cutting board/counter top with an oven mitt underneath. Stir in vanilla and peanut butter until melted.
  • Add confectioners sugar until combined and smooth. Pour into prepared pan, and allow to completely cool.
  • Once cooled, remove from pan and cut into roughly 1 1/2" squares.
  • Store in an airtight container, plastic bag, or wrap in plastic plastic wrap on the counter or in the refrigerator for up to two weeks. Can be frozen for up to six months wrapped individually or as a slab in plastic.


Serving: 2pieces | Calories: 152kcal | Carbohydrates: 26g | Protein: 1g | Fat: 5g | Saturated Fat: 2g | Cholesterol: 7mg | Sodium: 52mg | Potassium: 56mg | Fiber: 1g | Sugar: 25g | Vitamin A: 84IU | Calcium: 17mg | Iron: 1mg
Tried this recipe?Mention @MondayisMeatloaf or tag #mondayismeatloaf! I would love to see your amazing creations!

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