2 Ingredient Peanut Butter Fudge

This 2 Ingredient Peanut Butter Fudge is the ultimate quick and satisfying treat. In just two minutes and using only a microwave, you can whip up creamy, rich fudge without the need for butter, condensed milk, or powdered sugar. It’s sweet, smooth, and loaded with peanut butter flavor—a perfect no-fuss dessert for any occasion.

Why You’ll Love This Recipe

This fudge is incredibly easy to make and requires zero baking. With just two pantry-friendly ingredients and minimal prep time, it’s a go-to recipe for last-minute sweet cravings, holiday trays, or party snacks. It’s naturally gluten-free, and by using vegan-friendly frosting, it can also be made entirely plant-based. No fancy equipment or experience required—just melt, mix, chill, and enjoy.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• 1 ½ cups peanut butter

• 14 ounces vanilla frosting (any brand; vegan options work too)

Directions

1. Line an 8×8-inch pan with parchment paper and set aside.

2. In a microwave-safe bowl, add the peanut butter. Microwave in 20-second intervals until melted and smooth.

3. Add the vanilla frosting to the bowl. Microwave again for another 20 seconds, then stir until well combined.

4. Pour the mixture into the prepared pan and smooth out the top with a spatula.

5. Refrigerate for at least 2 hours, or until firm.

6. Once set, slice into squares and sprinkle with flaky salt, if desired.

Servings and timing

This recipe makes 24 pieces of fudge.
Prep time: 1 minute
Cook time: 1 minute
Total time: 2 minutes (plus chilling time)

Variations

• Nut butter swaps: Use almond butter, cashew butter, or sunflower seed butter for a different flavor profile.

• Frosting flavors: Try chocolate, cream cheese, or coconut frosting for a unique twist.

• Add-ins: Stir in mini chocolate chips, crushed pretzels, or chopped nuts for texture.

• Layered fudge: Make two different frosting/nut butter combos and layer them for a two-tone effect.

• Toppings: Sprinkle with sea salt, cocoa nibs, or a drizzle of melted chocolate before chilling.

Storage/Reheating

Storage:
Store fudge in a sealed container in the refrigerator. It will stay fresh for up to 4 weeks.

Freezing:
Freeze in a parchment-lined container for up to 6 months. Thaw in the refrigerator before serving.

Reheating:
No reheating is needed—this fudge is best served cold or at room temperature.

FAQs

Can I make this without a microwave?

Yes. You can melt the peanut butter and frosting together in a saucepan over low heat, stirring constantly until smooth.

Is this recipe vegan?

It can be if you use a vegan-friendly vanilla frosting and natural peanut butter.

Can I use natural peanut butter?

Yes, but make sure it’s well stirred and not too oily or dry. It may create a slightly softer texture.

What kind of frosting works best?

Any store-bought frosting works. Vanilla is classic, but you can experiment with chocolate, maple, or coconut flavors.

Can I make this sugar-free?

Yes, use sugar-free peanut butter and a sugar-free frosting to lower the sugar content.

Why didn’t my fudge set properly?

Make sure the peanut butter and frosting were fully melted and mixed, and that the fudge was chilled for at least 2 hours.

How can I make this fudge firmer?

Use less frosting (start with 12 ounces) or add a few tablespoons of powdered peanut butter to thicken the mixture.

Can I double the recipe?

Absolutely. Use a larger dish or make thicker fudge in the same size pan.

Is this fudge good for gifting?

Yes, it holds up well and is easy to package. Wrap pieces in wax paper or place in a decorative tin.

How long does it take to chill?

At least 2 hours, but overnight chilling ensures the cleanest cuts and firmest texture.

Conclusion

2 Ingredient Peanut Butter Fudge is proof that simplicity can be delicious. With just two ingredients and a couple of minutes, you get a smooth, creamy dessert that’s perfect for sharing or keeping all to yourself. Whether you’re new to cooking or a seasoned baker in need of a shortcut, this quick and easy fudge delivers on flavor, texture, and convenience.