If you’re on the hunt for the ultimate sweet-and-salty topping, Peanut Butter Frosting has your name all over it. Ultra-creamy and loaded with rich peanutty flavor, this frosting is your secret weapon for dressing up cakes, cupcakes, brownies, or even cookies. It’s lusciously smooth yet spreadable, equally at home piped into swirls or smeared with joyful abandon. Whether you’re a peanut butter fanatic or just want something a little extra special to crown your desserts, this recipe delivers pure happiness in a bowl.

Ingredients You’ll Need
The magic of this Peanut Butter Frosting lies in its short ingredient list. Every staple plays a starring role, contributing to that silky, cloud-like texture and the kind of nostalgic flavor that takes you back to childhood birthday parties.
- Creamy peanut butter: For maximum smoothness and classic peanut taste, use a creamy, shelf-stable variety—or try well-stirred natural peanut butter for deeper flavor.
- Unsalted butter (softened): Adds richness and a pillowy texture; unsalted lets you control the saltiness just right.
- Powdered sugar: The secret to that melt-in-your-mouth sweetness and the silkiest frosting texture.
- Heavy cream: Delivers extra fluff and keeps the frosting spreadable—you can thin it out as needed.
- Vanilla extract: A splash rounds out the peanutty punch and creates a beautifully aromatic finish.
- Pinch of salt: Don’t skip it! Salt balances the sugar and makes the peanut butter flavor pop.
How to Make Peanut Butter Frosting
Step 1: Cream the Peanut Butter and Butter
In a large mixing bowl, combine the creamy peanut butter and softened unsalted butter. Using a mixer (hand or stand), beat them together until the mixture is completely smooth and looks a little bit fluffy—this usually takes about a minute. This step is key for achieving that signature airy texture of homemade Peanut Butter Frosting.
Step 2: Add Powdered Sugar Gradually
With your mixer on low speed, add the powdered sugar one cup at a time. Mix until each addition disappears before adding more; this keeps your kitchen (and yourself) free of sugar clouds! Once all the sugar is in, your frosting will thicken up and start looking irresistible.
Step 3: Pour in Cream, Vanilla, and Salt
Pour in the heavy cream, vanilla extract, and that all-important pinch of salt. Now, turn the speed up to medium-high and whip for a solid two to three minutes. Watch as your Peanut Butter Frosting transforms—this is where it becomes dreamy, light, and totally spreadable.
Step 4: Adjust Consistency
Peek at your frosting. If you plan to pipe it onto cupcakes or want it extra silky for cakes, you may need another tablespoon or two of cream. Beat again briefly after any additions. When it holds its shape and glides off a spoon, you’re ready to swirl, pipe, or dollop away.
How to Serve Peanut Butter Frosting

Garnishes
This frosting is delicious on its own, but a few simple garnishes can take your Peanut Butter Frosting from everyday to eye-popping. Sprinkle on mini chocolate chips, chopped peanuts, or a dusting of cocoa powder just before serving for a bakery-worthy finish.
Side Dishes
Serving cupcakes topped with this rich delight? A refreshing glass of milk or scoop of vanilla ice cream makes a dreamy companion. For birthday parties, fresh strawberries or sliced bananas on the plate add a pop of color and a fruity contrast to the nutty, sweet frosting.
Creative Ways to Present
Let your imagination go wild! Try sandwiching a generous swoosh of Peanut Butter Frosting between crispy graham crackers, spreading it between chocolate cake layers with sliced bananas, or swirling it atop brownies. Mini frosted cookies or even whoopie pies also shine with this luscious touch.
Make Ahead and Storage
Storing Leftovers
Got extra Peanut Butter Frosting? Lucky you! Transfer it to an airtight container and store it in the fridge for up to five days. When ready to use, let it sit at room temperature for about fifteen minutes, then give it a quick stir to revive its fluffy texture.
Freezing
This frosting freezes beautifully, making it a true timesaver for future celebrations. Simply spoon the frosting into a freezer-safe zip-top bag, remove any extra air, and freeze for up to three months. Thaw overnight in the fridge, then let it come to room temperature and beat again for fresh-from-the-mixer results.
Reheating
While Peanut Butter Frosting doesn’t technically need reheating, a brief warm-up does wonders if it’s too firm. Let it rest on the counter until spreadable. If it’s stubborn, a quick ten-second zap in the microwave (stirring after) brings it right back to life—just don’t overdo it or risk melting!
FAQs
Can I use chunky peanut butter instead of creamy?
Absolutely! Chunky peanut butter will give your Peanut Butter Frosting extra crunch and pockets of nutty texture. Just know that it won’t be as smooth, but it’s incredibly satisfying for anyone who loves a little bite with their sweetness.
Is this frosting pipeable for cupcakes?
Yes—this frosting holds its shape beautifully if you whip it well and adjust the cream to your preferred consistency. For super-defined swirls, use a large piping tip and cool your frosting for a few minutes before piping.
Can I make this with vegan butter and dairy-free cream?
Definitely. Swap the unsalted butter for your favorite vegan alternative, and use coconut cream or a thick plant-based milk. The taste and texture will still be irresistible, and your vegan friends will thank you!
How can I fix frosting that’s too thick or thin?
If your Peanut Butter Frosting is too stiff, add more heavy cream, a tablespoon at a time, until it loosens up. If it’s too runny, mix in a bit more powdered sugar. It’s forgiving and customizable.
Does it have to be refrigerated after frosting a cake?
If you’re not serving immediately, it’s best to refrigerate anything frosted with Peanut Butter Frosting, especially in warmer months. Bring your dessert to room temperature before serving so the frosting softens to that perfect creamy state.
Final Thoughts
Peanut Butter Frosting is one of those magical recipes that brings out the inner child in everyone and brings instant joy to nearly any dessert. Give it a try—you’ll be amazed how just a handful of pantry staples can create something truly swoon-worthy. Your cupcakes and cakes may never be satisfied with anything else!
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Peanut Butter Frosting Recipe
- Total Time: 10 minutes
- Yield: Frosts 12 cupcakes or 1 two-layer 8-inch cake 1x
- Diet: Vegetarian, Gluten-Free
Description
This Peanut Butter Frosting is a creamy and decadent topping that’s perfect for cakes and cupcakes. With a rich peanut butter flavor and a light, fluffy texture, it’s sure to become a favorite for any dessert lover.
Ingredients
Creamy Peanut Butter Frosting:
- 1 cup creamy peanut butter
- 1/2 cup unsalted butter (softened)
- 2 cups powdered sugar
- 1/4 cup heavy cream (plus more as needed)
- 1 teaspoon vanilla extract
- pinch of salt
Instructions
- Beat Peanut Butter and Butter: In a large mixing bowl, beat the peanut butter and softened butter together until smooth and creamy.
- Add Powdered Sugar: Add the powdered sugar one cup at a time, mixing on low until incorporated.
- Mix in Cream and Flavorings: Add the heavy cream, vanilla extract, and a pinch of salt. Beat on medium-high speed for 2–3 minutes until light and fluffy.
- Adjust Consistency: Adjust the consistency with a little more cream if needed for spreading or piping.
Notes
- For a deeper flavor, use natural peanut butter, but make sure it’s well stirred.
- This frosting pairs well with chocolate, banana, or vanilla cakes and cupcakes.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Category: Frosting
- Method: No-Cook
- Cuisine: American
Nutrition
- Serving Size: 2 tablespoons
- Calories: 180
- Sugar: 16g
- Sodium: 85mg
- Fat: 12g
- Saturated Fat: 5g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 18g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 20mg