Peanut Butter Fudge Recipe (2024)

  • Fudge
  • Gluten-Free Desserts
  • Christmas Candies
  • Peanuts

This peanut butter fudge recipe is easy and quick. Melt marshmallows with sugar and peanut butter, and you’re almost done! A creamy peanut butter lover’s dream, it makes a great gift.

By

Irvin Lin

Peanut Butter Fudge Recipe (1)

Irvin Lin

Irvin is a critically acclaimed cookbook author and food blogger. His cookbook "Marbled, Swirled, and Layered" was chosen as one of the best baking cookbooks of 2016 in the New York Times.

Learn about Simply Recipes'Editorial Process

Updated March 01, 2022

Peanut Butter Fudge Recipe (2)

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In This Recipe

My partner’s mom makes peanut butter fudge on what seems like a weekly basis. I’m not sure how she can consume so much of it. She has a dedicated baking pan just for this peanut butter fudge and there’s always a tub of it in the fridge.

But when I emailed her asking for the recipe, she didn’t know how to give it to me. Like most recipes of hers, she free-forms it, adding peanut butter until the batter “looks and feels” right.

It looked like I'd need to head into the kitchen and do some experimenting!

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The Secret to Easy Peanut Butter Fudge

The one thing she did casually mention was that she uses marshmallows in her peanut butter fudge, something I'd never thought about. When I make fudge, I often use the old-fashioned method, which requires cooking the sugar to a soft-ball stage of 238°F. It’s fussy and always put me off of making fudge.

But since the sugar in marshmallows has already been cooked and turned into a candy, using them to make the peanut butter fudge seemed like an easy and totally acceptable cheat.

And easy it was! This easy peanut butter fudge recipe is a snap to make and super smooth. So easy that I’m fearful I’ll end up like her, making this easy peanut butter fudge on a weekly basis. I can feel my waistline expanding already.

The Best Peanut Butter for Fudge

I use smooth peanut butter in this fudge, but if you prefer a little texture, feel free to use the same amount of chunky peanut butter in its place.

You'll get the best results if you stick with commercial brands of peanut butter (Jif, Skippy, Peter Pan). Natural peanut butter has a tendency to separate, and it can sometimes interfere with how the fudge sets up. (If you do want to try using natural peanut butter, just make sure it's very well-stirred and the oil is well incorporated.)

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Subs and Additions to Peanut Butter Fudge

  • Substitute coconut milk for a non-dairy version of this fudge
  • Make chocolate peanut butter fudge by drizzling melted chocolate over the top, or sprinkling chocolate chips on top right after smoothing out the fudge in the pan and gently pressing them in.

How to Store Peanut Butter Fudge

Store this fudge in an airtight container. The fudge keeps for about a week at room temperature or 2 to 3 weeks refrigerated.

To freeze, wrap the chilled fudge in plastic wrap and then transfer to a freezer storage bag. Freeze for up to a month and thaw in the fridge.

Mini vs. Regular Marshmallows

You need marshmallows for this recipe, but there's wiggle room with the size of the marshmallows.

  • 10 miniature marshmallows is the equivalent of 1 regular marshmallow. Substitute 60 miniature marshmallows for the 6 regular-sized ones in this recipe.
  • 4 regular marshmallows are the equivalent of 1 jumbo marshmallow. Substitute 1 1/2 jumbo marshmallows for the 6 regular-sized ones in this recipe.
  • You cannot substitute marshmallow creme for the marshmallows. Marshmallow creme doesn't have any gelatin, and this recipe requires the gelatin for the fudge to set.

How to Package Peanut Butter Fudge for Gifts

Homemade fudge makes a thoughtful gift. These tips will help you package it for gift giving.

  • Wrap cooled and then refrigerated fudge tightly in plastic wrap so it does not dry out.
  • Add a layer of parchment paper around the plastic wrap. It will look nicer when the recipient opens the box.
  • Put the fudge in an appropriately sized box. You can buy candy boxes at a craft store that will work well as gift boxes.

To send the fudge, you'll need two boxes—one for boxing up the fudge and one to place that box, or boxes, of fudge in.

  • Use packing material so the box that the fudge is in does shift in the shipping box.
  • If you're shipping during warmer months, you'll need frozen gel packs or dry ice and an insulated shipping container or the fudge may melt.
  • If you're shipping during colder months, you can mail the fudge without the assistance of a cold pack or dry ice.

Freezing Peanut Butter Fudge

This fudge freezes well, so it's a convenient, crowd-pleasing treat to make ahead of a party. Make it in batches as written; we don't recommend doubling the recipe.

To freeze, cool the fudge completely and wrap in one large piece in plastic wrap. Place the wrapped fudge in a freezer safe zipper bag. Defrost in the refrigerator.

More Peanut Butter Treats!

  • Peanut Butter Swirl Brownies
  • Peanut Butter Pie
  • Peanut Butter Blossom Cookies
  • Peanut Butter Balls (Buckeyes)
  • Peanut Butter Chocolate Chip Banana Bread

From the Editors Of Simply Recipes

Easy Peanut Butter Fudge

Prep Time5 mins

Cook Time10 mins

Cooling Time12 hrs

Total Time12 hrs 15 mins

Servings64 servings

You'll get the best results if you stick with commercial brands of peanut butter (Jif, Skippy, Peter Pan). Natural peanut butter has a tendency to separate, and it can sometimes interfere with how the fudge sets up.

Have your lined baking pan ready to go before you start and work fast once you remove the saucepan from the heat. As the fudge starts to cool, it can become difficult to work with.

Ingredients

  • 1/2 cup whole milk

  • 6regular-sized marshmallows, certified gluten free if needed

  • 3/4 cup (150g) sugar

  • 3/4 cup (165g) light brown sugar

  • 2 teaspoons vanilla extract

  • 1/2 teaspoon kosher salt

  • 1 1/2 cups (420g) smooth peanut butter (notnatural peanut butter, see Recipe Note)

Method

  1. Prepare the baking pan:

    Lightly spray an 8 x 8-inch baking pan with cooking oil. Line with parchment paper.

    Peanut Butter Fudge Recipe (6)

  2. Warm the milk and marshmallows:

    Place the milk and the marshmallows in medium pan. Turn the heat to medium low and gently heat the milk. Stir constantly until the marshmallows have melted. If the milk starts to foam up too much, reduce the heat.

    Peanut Butter Fudge Recipe (7)

  3. Stir in the sugars, followed by the remaining ingredients:

    Once the marshmallows have melted, add both sugars and continue to cook on medium low heat while stirring until the sugars have dissolved and the liquid is smooth. Add the vanilla, salt, and peanut butter. Stir until smooth and incorporated into the batter.

    Peanut Butter Fudge Recipe (8)

    Peanut Butter Fudge Recipe (9)

  4. Pour the hot fudge into the prepared pan:

    Once the fudge batter is smooth and uniform, immediately pour it into the prepared pan and smooth out with spatula or butter knife.

    Peanut Butter Fudge Recipe (10)

  5. Cool overnight:

    Let the fudge cool to room temperature in the pan, then chill in the fridge overnight.

  6. Cut the fudge:

    The next day, lift the fudge from the pan using the parchment paper and cut into 1-inch squares.

    Store in an airtight container. The fudge keeps for about a week at room temperature or 2 to 3 weeks refrigerated.

    Peanut Butter Fudge Recipe (11)

Peanut Butter Fudge Recipe (12)

Nutrition Facts (per serving)
58Calories
3g Fat
7g Carbs
1g Protein

×

Nutrition Facts
Servings: 64
Amount per serving
Calories58
% Daily Value*
Total Fat 3g4%
Saturated Fat 1g3%
Cholesterol 0mg0%
Sodium 41mg2%
Total Carbohydrate 7g3%
Dietary Fiber 0g1%
Total Sugars 6g
Protein 1g
Vitamin C 0mg0%
Calcium 8mg1%
Iron 0mg1%
Potassium 42mg1%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Nutrition information is calculated using an ingredient database and should be considered an estimate. In cases where multiple ingredient alternatives are given, the first listed is calculated for nutrition. Garnishes and optional ingredients are not included.

Peanut Butter Fudge Recipe (2024)

FAQs

What is the secret to perfect fudge? ›

The key to creamy, luscious fudge is controlling crystal formation. If the sucrose (table sugar) crystals are small, the fudge will feel creamy and smooth on your tongue. But if the crystals are large, the fudge develops a crumbly, dry, or even coarse texture.

Why didn't my peanut butter fudge set? ›

Fudge Didn't Set

If your fudge turned out super sticky, or it didn't set as it cooled, it probably never got hot enough. This mistake is super easy to avoid if you use a candy thermometer and cook the fudge to the temperature specified in the recipe (usually between 234 and 239°F).

How do you know when fudge is beaten enough? ›

After letting the fudge cool, it's time to beat it. It is important to stir constantly with a wooden spoon until the mixture starts to thicken and its surface starts to look dull or matte. Now is the time to stop beating and pour the fudge into a mould.

Why won't my 2 ingredient fudge set? ›

The main reason is that your Fudge has not reached the optimum temperature. If your mixture only reaches 110 or 112 degrees Celsius it will always be soft. That's why we recommend investing in a sugar thermometer. Another reason your Fudge is not setting is that the ratio of liquid to sugar is too high.

What not to do when making fudge? ›

7 Common Mistakes to Avoid for Candy Shop-Worthy Fudge and Caramels
  1. Using the Wrong Pan. All candy and confections start by melting sugar. ...
  2. Stirring the Sugar. ...
  3. Not Using a Candy Thermometer. ...
  4. Leaving Out the Parchment Paper Lining. ...
  5. Skipping the Cooking Spray. ...
  6. Scraping the Pot. ...
  7. Using a Cold Knife to Slice.
Dec 16, 2015

How do you make fudge creamy and not grainy? ›

A lot of big crystals in fudge makes it grainy. By letting the fudge cool without stirring, you avoid creating seed crystals. Stirring would help sucrose molecules "find" one another and start forming crystals.

What is the secret to smooth fudge that is not gritty? ›

If the sugar crystals are not properly dissolved before cooling, they can create a gritty texture. To avoid this, ensure that you stir the fudge mixture consistently and remove any sugar crystals that form on the sides of the pan using a wet pastry brush.

How do you fix runny peanut butter fudge? ›

If your fudge is soft or runny, it probably didn't come up to a high enough temperature while it was cooking. Put it back into the saucepan and add 1–2 US tbsp (15–30 ml) of 35% fat whipping cream.

Do you stir fudge when it's boiling? ›

Avoid Stirring Once the Mixture Comes to a Simmer

Another key part of a successful fudge texture is when you stir the mixture. Stirring the sugar and milk during the initial stages of cooking allows the sugar to dissolve. However, once the mixture comes to a boil, it's time to put the spoon down.

Can I fix fudge that didn't set? ›

OPTION 3) Sieve together some powdered sugar and cocoa powder, and gradually work this into your unset fudge until it reaches the consistency of dough, then roll out and cut into squares, or shape into balls and then roll in powdered sugar (roll the balls in icing sugar, not yourself).

What makes high quality fudge? ›

You have to control two temperatures to make successful fudge: the cooking temperature AND the temperature at which the mixture cools before stirring to make it crystallize. Confectionery experiments have shown that the ideal cooking temperature for fudge is around 114 to 115 °C (237 to 239 °F).

Why is my old fashioned fudge not hardening? ›

The most common culprit behind unset fudge is inaccurate temperature control. If the sugar mixture hasn't reached the correct temperature, your fudge won't set. Ensure you use a reliable candy thermometer and follow temperature guidelines meticulously to achieve the desired consistency.

How long does it take for fudge to fully set? ›

Beware the recipe that tells you to chill the fudge to ensure it sets. Proper fudge will set after sitting at room temperature for about 4 hours. Understand that cooking the fudge properly is the skirmish before the war.

Can you reset fudge? ›

In principle for traditional fudge you could re-heat it by adding more liquid so that the sugars dissolve. You would then need to evaporate the excess liquid (but don't exceed the soft-ball stage at 237 F/114 C) to recreate your supersaturated solution.

What does cream of tartar do in fudge? ›

Cream of tartar is used in caramel sauces and fudge to help prevent the sugar from crystallizing while cooking. It also prevents cooling sugars from forming brittle crystals, this is why it's the secret ingredient in snickerdoodles!

How do I get my fudge to harden? ›

OPTION 2) Freeze it overnight. Cut it into squares. Cover each square thickly in melted chocolate, ensuring no part of the fudge is exposed. Cross your fingers and hope that the chocolate sets firmly before the fudge starts to thaw, and later impress your friends as you present them with your soft-centred chocolates.

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