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Microwave Peanut Butter Fudge

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close up shot of peanut butter fudge with m&ms on the top
Rich and creamy, this peanut butter fudge is irresistible. It takes only a handful of ingredients and a few minutes to make this classic treat!
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This microwave peanut butter fudge is a yummy candy that’s so simple to make at home. This quick and easy PB fudge recipe takes only ten minutes to prep and uses just six ingredients to create this rich, creamy fudge that is totally irresistible!

For more fudge recipes to make in the microwave, take a look at this easy gingerbread fudge, Reese’s peanut butter fudge and this tiger fudge that has just three ingredients.

peanut butter fudge stacked on top of each other

MORE FUDGE RECIPES: 
Mint Chocolate Fudge | Christmas Fudge


MICROWAVE PEANUT BUTTER FUDGE INGREDIENTS

peanut butter fudge raw ingredients that are labeled

You will need:

  • 2 sticks (1 cup) of unsalted butter
  • 1 ½ cups of creamy peanut butter
  • 2 teaspoons of vanilla extract
  • 3 ¼ cups of powdered sugar
  • 1 tablespoon of water
  • Red and green M&Ms

PRO TIP: You can choose the brand of peanut butter based on your personal preference although we found the brand did affect the color of the fudge ever so slightly. See the substitutions section below for details.

SUBSTITUTIONS AND ADDITIONS

Peanut Butter: Any commercial brand of peanut butter will work for this recipe although you may find that the brand you choose will affect the color of your fudge slightly. We tested four different brands (JIF, Peter Pan, Skippy and Reese’s) and found that the Peter Pan produced a darker color, JIF was the lightest and Reese’s had a slight orange hue but the fudge consistency was the same. The Peter Pan brand was also slightly sweeter while the JIF was just a bit saltier.

Vanilla Extract: If you don’t have this in the cupboard, you could use two teaspoons of maple syrup instead.

Powdered Sugar: This is also known as confectioners’ sugar or icing sugar. In a pinch, you could use six cups of granulated sugar instead.

M&Ms: These are optional, but we love how they make the fudge look pretty. You could use mini marshmallows, chocolate chips or other small candies if you prefer.

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HOW TO MAKE THIS MICROWAVE PEANUT BUTTER FUDGE RECIPE

STEP ONE: Cut out two pieces of parchment paper. One should be big enough to line an 8” x 8” baking dish with enough overhang to lift the fudge out of the dish. The other should be just the right size to sit on top of the fudge.

STEP TWO: Add a tablespoon of water to the bottom of the 8” x 8” baking dish and line the pan with the larger piece of parchment paper. Make sure to let the bottom parchment paper hand over the edges of the pan.

peanut butter fudge process shot

STEP THREE: In a medium-sized microwave-safe bowl, add the unsalted butter and the creamy peanut butter. Heat in the microwave for 60 seconds and then stir. Add the vanilla extract and stir again.

peanut butter fudge process shot

STEP FOUR: Slowly add the powdered sugar, one cup at a time, whilst stirring. Continue to stir until completely combined with no lumps or white streaks.

PRO TIP: Sifting the powdered sugar before mixing it in will help ensure that you have very smooth fudge.

peanut butter fudge process shot

STEP FIVE: Pour the fudge mixture into the baking dish and spread it out evenly with a spatula.

peanut butter fudge process shot

STEP SIX: Add red and green M&Ms to the fudge mixture, if desired.

PRO TIP: Visualize where you plan to slice the fudge, then add two or three M&Ms onto each piece.

STEP SEVEN: Place the smaller piece of parchment paper on top of the fudge to help smooth the top. Leave it in place and put the fudge in the refrigerator to chill for two hours.

peanut butter fudge process shot

STEP EIGHT: Remove the fudge from the refrigerator. Remove the top piece of parchment paper and use the overhanging pieces to lift the fudge out of the tray.

STEP NINE: Warm a large, sharp knife under hot water. Dry it and slice the fudge.

STORAGE

IN THE FRIDGE: You can store peanut butter fudge for one week in the refrigerator or three days at room temperature. Always use an airtight container.

IN THE FREEZER: You can freeze peanut butter fudge for up to three months. Slice it and wrap each block in foil before freezing.

close up shot of peanut butter fudge with m&ms on the top

This microwave peanut butter fudge would make a great gift to give to someone over the holiday season with the fun red and green M&Ms giving this fudge a lovely festive look. Creamy, sweet, and rich, it’s sure to be a hit with kids and adults alike.

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close up shot of peanut butter fudge with m&ms on the top

Microwave Peanut Butter Fudge

5 from 1 vote
Rich and creamy, this peanut butter fudge is irresistible. It takes only a handful of ingredients and a few minutes to make this classic treat!
Prep Time 10 minutes
Total Time 2 hours 10 minutes
Servings 64

Ingredients
  

  • 2 sticks unsalted butter 1 cup
  • 1 1/2 cup creamy peanut butter
  • 2 tsp vanilla extract
  • 3 1/4 cup powdered sugar
  • 1 tbsp water
  • red and green M&M's

Instructions
 

  • Cut out two pieces of parchment paper. One should be big enough to line an 8” x 8” baking dish with enough overhang to lift the fudge out of the dish. The other should be just the right size to sit on top of the fudge.
  • Add a tablespoon of water to the bottom of the 8” x 8” baking dish and line the pan with the larger piece of parchment paper.
  • In a medium-sized microwave-safe bowl, add the unsalted butter and the creamy peanut butter. Heat in the microwave for 60 seconds and then stir. Add the vanilla extract and stir again.
  • Slowly add the powdered sugar, one cup at a time, whilst stirring. Continue to stir until completely combined with no lumps or white streaks.
  • Pour the fudge mixture into the baking dish and spread it out evenly with a spatula. If desired, add red and green M&Ms. Tip: Visualize where you plan to slice the fudge, then add two or three M&Ms onto each piece.
  • Place the smaller piece of parchment paper on top of the fudge to help smooth the top. Leave it in place and put the fudge in the refrigerator to chill for two hours.
  • Remove the fudge from the refrigerator. Remove the top piece of parchment paper and use the overhanging piece to lift the fudge out of the tray.
  • Warm a large, sharp knife under hot water. Dry it and slice the fudge.

Video

Notes

PRO TIP: Any commercial brand of peanut butter will work for this recipe although you may find that the brand you choose will affect the color of your fudge slightly. We tested four different brands (JIF, Peter Pan, Skippy and Reese’s) and found that the Peter Pan produced a darker color, JIF was the lightest and Reese’s had a slight orange hue but the fudge consistency was the same. The Peter Pan brand was also slightly sweeter while the JIF was just a bit saltier. Overall, any brand will give you delicious fudge!
PRO TIP: Sifting the powdered sugar before mixing it in will help ensure that you have very smooth fudge.
 

Nutrition

Calories: 85kcal | Carbohydrates: 7g | Protein: 2g | Fat: 6g | Saturated Fat: 2g | Cholesterol: 8mg | Sodium: 28mg | Potassium: 40mg | Fiber: 1g | Sugar: 7g | Vitamin A: 88IU | Calcium: 3mg | Iron: 1mg
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Proudly Prepared by the Spaceships Kitchen

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