Microwave Peanut Butter Fudge (Just 3 Ingredients)

This microwave peanut butter fudge is rich, creamy, and delicious!

It calls for just three ingredients and it’s ready in 5 minutes. Perfect for your next family get-together..

Creamy peanut butter, powdered sugar, and unsalted butter are all you need for this classic dessert.

Best of all, it’s no-bake. Just microwave and mix.

Peanut butter fudge is perfect for holiday gifts, family gatherings, or a sweet midnight snack!

How to Make Microwave Peanut Butter Fudge

Forget the hot stove and the candy thermometers. Thanks to the microwave, making this peanut butter fudge is a breeze.

Just follow these basic steps:

1. Microwave the peanut butter and butter. In a microwaveable bowl, mix peanut butter and butter. Microwave for 1 minute. Stir the mixture and microwave for another minute. Stir until fully incorporated. 

2. Add powdered sugar. Mix the powdered sugar into the peanut butter mixture until smooth. It should be a thick, paste-like batter.

3. Transfer the batter. Pour the batter into a baking pan lined with parchment paper. Next, place a sheet of parchment paper on top of the fudge. Start pressing with your palms to spread evenly across the pan. 

4. Chill and cut. Refrigerate for at least 2 hours. Remove the fudge from the pan and cut into small squares using a sharp knife. Enjoy!

Should Peanut Butter Fudge Be Refrigerated?

Once your family takes a bite of this peanut butter fudge, it’s unlikely there will be any leftovers. In fact, I recommend making extra to enjoy later. 

There’s no need to refrigerate, unless you like your fudge cold. Store your fudge in an air-tight container and it will stay fresh for 3 to 5 days.

If you refrigerate your fudge, it will last for up to a month and up to 1 year in the freezer.

How Long Does Fudge Last?

The shelf-life of fudge depends on how you store it. At room temperature, fudge will last for two weeks. If you refrigerate it, it’s good for a month. If you freeze it, it can survive for an entire year!

Just don’t place it inside the freezer door. Store your fudge at the back to shield it from shifts in temperature whenever someone opens the freezer.

But, before eating stored fudge, it’s also wise to check for signs of spoilage. When you start to see cracks on your fudge, that means it’s been exposed to too much air. This makes your fudge dry and less tasty.

Likewise, when your fudge becomes way too soft and mushy, it means it’s time to let it go. Also, if the fudge has become tough and has an oily surface, it’s also past its prime.

How To Store Microwave Peanut Butter Fudge

There are 3 main ways to store fudge: at room temperature, in the fridge, or in the freezer.

Here are some quick guidelines to follow: 

To Store: For room temperature, place the fudge in a plastic container or a self-sealing bag. Keep it in a cool, dark area and enjoy within 2 weeks. For the refrigerator, place the fudge in an air-tight container to avoid drying out. Enjoy within 1 month.

To Freeze: Double-wrap the squares individually. Do this by wrapping them with wax paper, then wrap with plastic wrap or foil. Next, place the squares into an air-tight container or a freezer bag. To thaw, simply place in the fridge or on the counter for a few hours. Enjoy within 3 months for the best flavor.

Tips For the Best Fudge

Unlike other candies, making this three-ingredient microwave fudge recipe is super easy. After all, there’s zero baking!

That said, I have some tips to make sure your fudge is the best.

• Add peanuts for crunch. This recipe yields a smooth fudge. If you prefer a little crunch, add peanuts to the batter. Yum!

• Score your squares. Want perfectly cubed fudge? Make score lines on the fudge to ensure even squares when cutting. I like to use dental floss to score my fudge – the unflavored kind, of course! A kitchen ruler helps too.

• Cut smaller for gifts. When I pass this fudge out as gifts I cut it into 1 inch squares. The smaller the size, the more squares you get!

• Heat your knife. Before cutting, heat your knife under hot water and dry with a towel. It makes cutting the fudge much easier.

• Firm up your fudge. If your fudge becomes too moist, just unwrap it. Fudge naturally starts to dry when exposed to air. Leave it unwrapped for a few hours and it will become much firmer.

Want More Fudge Recipes?

Eagle Brand Fudge
Fantasy Fudge
Nestle Fudge Recipe
Rocky Road Fudge