Peanut Butter Buttercream Recipe

If you’re craving a frosting with that perfect balance of rich, nutty flavor and creamy indulgence, Peanut Butter Buttercream is your new best friend in the kitchen. This luscious, smooth frosting brings that classic peanut butter taste to life and pairs beautifully with everything from chocolate to banana cakes. Whether you’re frosting cupcakes or slipping it between cake layers, this Peanut Butter Buttercream is guaranteed to elevate your baking with its irresistible texture and flavor.

Ingredients You’ll Need

These ingredients are super simple but absolutely essential for creating that dreamy Peanut Butter Buttercream texture and flavor. Each part plays a crucial role, whether it’s the creamy richness, sweetness, or subtle hint of vanilla.

• ¾ Cup (170g) unsalted butter: Using room temperature butter ensures a smooth, fluffy base for your frosting.
• ¾ Cup (190g) creamy peanut butter (not natural): Non-natural creamy peanut butter blends perfectly for that classic, spreadable consistency.
• 2½ Cups (300g) powdered sugar: Provides the sweet, velvety texture that transforms the buttercream.
• 1 tsp vanilla extract: Adds a subtle depth of flavor that complements the peanut butter perfectly.
• 2 Tbsp heavy cream or milk: Just enough to lighten and soften the frosting.
• Pinch of salt: Balances the sweetness and enhances the peanut butter’s natural richness.

How to Make Peanut Butter Buttercream

Step 1: Cream the Butter and Peanut Butter

Start by beating the unsalted butter and creamy peanut butter together until the mixture is smooth and creamy. This step builds the rich, velvety base for your frosting and ensures that peanut butter flavor is evenly distributed.

Step 2: Gradually Add Powdered Sugar

Slowly incorporate the powdered sugar, beating continuously. Adding it gradually helps avoid a powdered cloud in your kitchen and ensures the sugar dissolves fully into the butter and peanut butter mixture, making your frosting silky rather than gritty.

Step 3: Mix in Vanilla and Cream

Add the vanilla extract and heavy cream or milk, then beat the frosting until it is light and fluffy. These ingredients bring harmony to the frosting, softening the sweetness and adding just the right amount of moisture for spreading or piping.

How to Serve Peanut Butter Buttercream

Garnishes

Elevate your Peanut Butter Buttercream by topping with chopped peanuts for a little crunch or a drizzle of melted chocolate to amplify that chocolate-peanut butter magic. A sprinkle of sea salt can also highlight the rich flavors while adding a gourmet touch.

Side Dishes

This buttercream shines when paired with moist chocolate cake, classic yellow cake, or banana bread. It also makes an amazing dollop alongside cookies or as a sweet dip for fruit skewers — perfect for parties or a fun dessert platter.

Creative Ways to Present

Try piping the Peanut Butter Buttercream into rosettes atop cupcakes or spreading it generously between cake layers for a stunning visual and flavor impact. You can also swirl it into a parfait with chopped nuts and little brownie bites to create an elegant dessert cup.

Make Ahead and Storage

Storing Leftovers

Keep any leftover Peanut Butter Buttercream in an airtight container in the refrigerator for up to one week. Before using, bring it back to room temperature and rewhip briefly to restore its creamy texture.

Freezing

You can freeze Peanut Butter Buttercream in a sealed container for up to three months. When ready to use, thaw it overnight in the fridge and then whip it again until smooth and fluffy to regain that fresh-from-the-bowl consistency.

Reheating

Since this is a butter-based frosting, avoid traditional reheating. Instead, let it sit at room temperature and use a mixer to bring it back to life. This keeps the texture perfect without risk of melting or separating.

FAQs

Can I use natural peanut butter for this recipe?

Natural peanut butter has a different oil content and texture, which can make the buttercream thinner and less stable. It’s best to stick to creamy, non-natural peanut butter for the perfect consistency.

How can I make the frosting more chocolatey?

Simply mix in 2 tablespoons of cocoa powder during the powdered sugar addition step. This adds a rich chocolate note that pairs beautifully with peanut butter.

Is it possible to make this recipe dairy-free?

Yes! Swap the unsalted butter for a dairy-free margarine and use a plant-based milk instead of heavy cream. The texture might vary slightly, but the flavor will still be delightful.

How long does Peanut Butter Buttercream last on a frosted cake?

When the cake is stored in the refrigerator, the frosting will remain fresh for about 3 to 4 days. Allow the cake to come to room temperature before serving for the best flavor and texture.

Can this buttercream be used for piping decorations?

Absolutely! The Peanut Butter Buttercream holds its shape well when properly chilled and whipped, making it ideal for piping rosettes, borders, or intricate designs.

Final Thoughts

There’s something truly comforting about Peanut Butter Buttercream that makes every bite feel special. Whether you’re upgrading a simple batch of cupcakes or going all out on a celebration cake, this frosting brings warmth, richness, and a smile to every occasion. So grab your mixer and your favorite peanut butter—it’s time to indulge in the creamy, nutty goodness you deserve!