Microwave Peanut Butter Fudge

Microwave Peanut Butter Fudge Photo

Microwave Peanut Butter Fudge: The Ultimate Guide

Microwave peanut butter fudge holds a special place in home kitchens. Rich, creamy, and satisfyingly sweet, this classic confection can be made with only a handful of pantry staples and almost zero fuss. Discover every facet of this easy microwave fudge—from tools and techniques to storage tips and flavor variations.

Why Choose Microwave Peanut Butter Fudge?

Busy schedules call for quick solutions, especially when you’re craving something decadent. Traditional fudge often requires a candy thermometer and endless stirring. With this method, you only need a microwave and a little patience while the fudge sets.

Microwave peanut butter fudge features:

  • Minimal prep and cleanup.
  • Consistency that holds up without graininess.
  • Intense peanut butter flavor packed in smooth, velvety squares.

Whether you plan to serve it at a gathering or enjoy it with an evening cup of tea, this recipe upgrades any dessert table.

Ingredients and Equipment

Ingredients

All you need is:

  • Creamy peanut butter (preferably unsweetened and unsalted for best control over taste)
  • Unsalted butter
  • Powdered sugar

Optional mix-ins: chopped roasted peanuts, a pinch of salt, chocolate chips, or vanilla extract.

Equipment

  • Microwave-safe mixing bowl (preferably glass)
  • Rubber spatula
  • Measuring cups and spoons
  • 8-inch square pan or similar-sized dish
  • Parchment paper or foil for lining
  • Sharp knife for cutting

How to Make Microwave Peanut Butter Fudge

This recipe embraces simplicity without skimping on taste. Here’s a step-by-step guide that ensures each square is soft, creamy, and foolproof.

Step 1: Prepare Your Pan

Line your chosen pan with parchment paper, leaving extra overhang for easy removal later. Smooth the corners, pressing down to prevent folds.

Step 2: Combine Peanut Butter and Butter

Measure equal amounts of creamy peanut butter and unsalted butter (typically one cup each for a small batch). Place them together in your microwave-safe bowl.

Step 3: Microwave in Bursts

Heat the mixture for 60 seconds on high. Remove and stir using a spatula. Return to the microwave for another 60 seconds. The butter should be fully melted and blend easily with the peanut butter. Stir again, scraping the sides of the bowl, until completely smooth.

Step 4: Incorporate Powdered Sugar

Gradually add powdered sugar—about 3 to 4 cups, depending on your desired firmness. Add it in several increments, blending after each addition. The batter will become thick and slightly hard to mix; this is what gives the fudge its signature dense texture.

If you want to boost the flavor, add a splash of vanilla extract or a small pinch of salt during this stage.

Step 5: Spread and Flatten

Spoon the thick mixture into your prepared pan. Place another sheet of parchment on top. Use your hands or the back of a measuring cup to press the fudge evenly into the corners. Aim for a level, compact layer.

Step 6: Chill Until Firm

Refrigerate the fudge for at least 2 hours. When fully set, use the overhanging parchment to lift it out of the pan. Transfer to a clean cutting board.

Step 7: Slice and Serve

Using a sharp knife, cut the fudge into small squares—1-inch segments work wonderfully for snacking or gifting. For ultra-clean edges, heat your knife under hot water and wipe dry before cutting.

Microwave Fudge Tips and Tricks

While the process is streamlined, attention to detail brings the best results. Here are some expert suggestions:

  • Pre-sift powdered sugar. This prevents lumps, giving the fudge a smooth consistency.
  • Score before cutting. Lightly mark where you plan to cut using a ruler for even squares.
  • Add peanut crunch (optional). Fold toasted, chopped peanuts into the batter prior to chilling.
  • Work quickly. The fudge firms up as it cools, so spread it in the pan before it becomes too stiff.
  • Batch size. Double the recipe without issues—just use a larger pan and extend chilling time.

Storing Microwave Peanut Butter Fudge

One batch rarely lasts long, but storage is simple if you want to save or gift your fudge.

At Room Temperature

  • Store the fudge in an airtight container, separating layers with parchment.
  • Keep in a cool, dark pantry.
  • Enjoy within 3 to 5 days for optimal freshness.

In the Fridge

  • Flavor and texture remain steady for up to 1 month.
  • Use an air-tight container to prevent absorption of refrigerator odors.

In the Freezer

  • For long-term storage, double-wrap cubes in wax paper and foil, then seal in a freezer bag.
  • Safely freeze for up to 1 year.
  • When thawing, transfer a few pieces to the fridge or countertop; avoid rapid temperature changes to prevent condensation.

Tip Table: Storage At-A-Glance

Storage Method Container Type Duration Texture
Room Temperature Airtight, cool area 3–5 days Soft, fresh
Refrigerator Airtight container Up to 1 month Firm, moist
Freezer Double-wrapped, airtight Up to 1 year Maintained

How to Tell if Your Fudge Has Gone Bad

Fresh fudge keeps well, but it can dry out or absorb flavors from its surroundings. Watch for:

  • Dry, cracked edges: Sign your fudge has been exposed to air and moisture is lost.
  • Oily surface: Excess oil may appear if your fudge begins to separate.
  • Overly soft or mushy texture: Indicates spoilage; discard to stay safe.
  • Off smells or visible mold always mean it’s time to make a new batch.

FAQs: Troubleshooting and Variation Ideas

Can I Use Chunky Peanut Butter?

Yes. Chunky peanut butter creates a more rustic fudge with bits of peanut throughout. For ultra-smooth fudge, stick with creamy.

What if My Fudge Is Too Soft or Stiff?

If too soft, add more powdered sugar, one tablespoon at a time, until the desired consistency is reached. If too stiff, microwave in 10-second bursts and stir after each interval to restore spreadability.

Can I Flavor or Decorate the Fudge?

Definitely. Drizzle melted chocolate over the set fudge, swirl in caramel, or top with flaky sea salt ahead of chilling. You can also press roasted nuts, crushed pretzels, or mini marshmallows into the surface.

Serving Ideas

Peanut butter fudge serves nicely with tea, coffee, or a scoop of vanilla ice cream. Arrange the squares in candy boxes with wax paper dividers for a homemade gift. For events, tuck small fudge pieces into decorative bags or stack them on a dessert platter.

Microwave peanut butter fudge delivers maximum flavor with minimum effort. The three-ingredient method means you can whip it up on a whim for sudden cravings or last-minute needs. Flexible, reliable, and crowd-pleasing, this fudge recipe proves that extraordinary desserts don’t require oven time or gourmet equipment. Once you master this quick treat, you may find it appearing at every occasion—from weeknight snacks to holiday spreads and everything in between.

Microwave Peanut Butter Fudge

⭐⭐⭐⭐⭐
4.8 from 7 votes

Course: Desserts / Cuisine:
Prep Time 3 minutes
Cooking Time 2 minutes
Servings 64 servings
Calories 200 cal

With just 3 ingredients, this microwave peanut butter fudge is ready in just 5 minutes. It’s rich. It’s creamy. It’s completely irresistible.

Ingredients

  • 8 oz unsalted butter
  • 1 pound powdered sugar
  • 1 cup creamy peanut butter

Instructions

  1. Line an 8x8 inch pan with parchment paper. Use enough so that the paper hangs over the side. This makes it much easier to remove the fudge from the pan.
  2. In a microwave-safe bowl, combine butter and peanut butter. Microwave for 1 minute and stir. Microwave for another minute and stir well until the mixture is completely smooth and incorporated.
  3. Add the powdered sugar and stir until smooth. Use a wooden spoon and stir vigorously until it looks like a thick, paste-like batter. Work quickly so it doesn't set.
  4. Spread the batter onto the lined baking pan. Place a sheet of parchment paper on top of the fudge and start pressing with your palms to spread evenly across the pan.
  5. Refrigerate for at least 2 hours. Remove the fudge from the pan and cut into small, 1-inch squares using a sharp knife.
  6. Enjoy!
Scroll to Top