If you’ve ever dreamed of a frosting that is unbelievably smooth, silky, and light yet melts in your mouth with decadent buttery goodness, then this Italian Meringue Buttercream Recipe is your new best friend. It perfectly balances the fluffiness of whipped egg whites with the richness of butter, creating a frosting that elevates any cake or cupcake to show-stopping levels. Whether you’re an experienced baker or just starting to explore homemade frostings, this Italian Meringue Buttercream Recipe is straightforward, impressive, and utterly delicious—trust me, it’s going to become a staple in your kitchen.

Ingredients You’ll Need
What’s wonderful about this Italian Meringue Buttercream Recipe is how simple yet incredible the ingredients are. Each component plays a special role, coming together to create that iconic fluffy texture and buttery flavor.
- 1 cup granulated sugar: Adds the necessary sweetness and forms the base of the hot sugar syrup that stabilizes the meringue.
- 1/4 cup water: Helps dissolve the sugar evenly, crucial for the perfect sugar syrup consistency.
- 5 large egg whites: Provide the airy, light structure that makes this buttercream so elegant and fluffy.
- 1/4 teaspoon cream of tartar: Acts as a stabilizer, helping the egg whites whip up to a glossy, firm peak.
- 1/4 teaspoon salt: Enhances flavor, balancing the sweetness and richness.
- 1 1/2 cups unsalted butter (softened and cubed): The hero that brings creaminess and depth, turning the meringue into luscious buttercream.
- 1 teaspoon pure vanilla extract: Adds a warm, fragrant finish that makes the buttercream dreamy and irresistible.
How to Make Italian Meringue Buttercream Recipe
Step 1: Prepare the Sugar Syrup
Begin by combining the granulated sugar and water in a small saucepan over medium heat. Stir gently just until the sugar dissolves completely—then stop stirring. This step is key because stirring after dissolving can cause sugar crystals to form, which will ruin the smooth texture. Let the syrup come to a boil and continue cooking it until it reaches 240°F, known as the soft-ball stage. Use a reliable candy thermometer here to get it just right.
Step 2: Whip the Egg Whites
While your syrup is heating, place the egg whites, cream of tartar, and salt in your stand mixer bowl fitted with a whisk attachment. Whip on medium-high speed until soft peaks form—this means when you lift the whisk, the peaks gently curl downward. This fluffy base is what will lift the buttercream to light, cloud-like heights.
Step 3: Combine Syrup and Egg Whites
Once the syrup hits 240°F, carefully and slowly drizzle it into the whipped egg whites. It’s important to pour the syrup along the side of the bowl or onto the bowl edge, not directly onto the whisk, to avoid splattering and uneven cooking. Keep your mixer running on medium speed during this process and then crank up to high speed once all syrup is in. Whip until the mixture becomes thick, glossy, and the bowl cools to room temperature, about 10 to 15 minutes—this patience really pays off!
Step 4: Incorporate the Butter
With the mixer now on medium speed, add the softened butter cubes one at a time. Mix well between additions. It might look curdled or soupy at first, and that’s perfectly normal—just trust the process and keep mixing. Gradually, the buttercream will come together into a smooth and creamy frosting that’s pure magic in texture.
Step 5: Add the Final Touch
Last but not least, add the vanilla extract and beat until everything is fully incorporated. Your Italian Meringue Buttercream Recipe is now ready to adorn your cakes, cupcakes, or whatever delicious creation you have in mind!
How to Serve Italian Meringue Buttercream Recipe

Garnishes
A beautifully frosted cake deserves a little extra love on top. Try garnishing with fresh berries, edible flowers, or a sprinkle of finely chopped nuts to add a pop of color, a hint of texture, and a burst of freshness that pairs beautifully with the rich buttercream.
Side Dishes
This Italian Meringue Buttercream works best with light and tender cakes such as chiffon, sponge, or angel food cake. The frosting balances sweetness perfectly without overwhelming the delicate flavors. It’s also excellent alongside fruit tarts or cupcakes, making those treats sing with creamy elegance.
Creative Ways to Present
Why not let your creativity shine? Use piping bags with decorative tips to create stunning swirls, rosettes, or ruffled effects. You can also flavor your Italian Meringue Buttercream Recipe by adding citrus zest, melted chocolate, or espresso powder to customize it for any occasion. The possibilities are endless, and every variation is a delight.
Make Ahead and Storage
Storing Leftovers
If you have leftover buttercream (and why wouldn’t you?), store it covered airtight in the refrigerator. It will keep beautifully for up to one week. Before using it again, allow it to come to room temperature and beat it for a minute or two to restore its silky texture.
Freezing
For longer preservation, Italian Meringue Buttercream freezes wonderfully for up to three months. Freeze it in an airtight container or a zip-top bag, making sure to press out excess air. When ready to use, thaw overnight in the fridge and then bring it to room temperature, whipping it again before spreading or piping.
Reheating
Never heat this buttercream on the stove or microwave as it can break or melt unevenly. Instead, gently bring it to room temperature naturally and rewhip using a mixer. This will rescue the texture without sacrificing any of the luscious creaminess.
FAQs
Can I use salted butter in the Italian Meringue Buttercream Recipe?
While you can, it’s best to stick with unsalted butter so that you can control the saltiness of the frosting exactly. Using salted butter might throw off the sweetness balance and flavor intensity.
Why is my Italian Meringue Buttercream curdled?
This happens when the butter is added before the meringue is cool enough or if the butter is too cold. Keep beating patiently—it usually comes back together as it warms and mixes.
Is Italian Meringue Buttercream gluten-free?
Yes! This recipe is naturally gluten-free since it uses only sugar, egg whites, butter, and vanilla, making it perfect for those avoiding gluten.
Can I add flavors to the Italian Meringue Buttercream Recipe?
Absolutely! You can incorporate various extracts, fruit purees, or even melted chocolate after the butter is added. Just mix gently to keep that silky texture intact.
How long does this buttercream last on a cake at room temperature?
Because it contains egg whites and butter, it’s safest to keep frosted cakes refrigerated and consume them within 1 to 2 days for best quality and food safety.
Final Thoughts
This Italian Meringue Buttercream Recipe is truly a game changer if you love frosting that’s fluffy, flavorful, and elegant. Once you master this technique, you’ll find your baked goods transformed into stunning treats that sparkle with both taste and texture. So don’t hesitate—grab those ingredients and give it a whirl. Your taste buds are in for a delightful surprise!
Print
Italian Meringue Buttercream Recipe
- Prep Time: 30 minutes
- Cook Time: 10 minutes
- Total Time: 40 minutes
- Yield: Makes about 4–5 cups (enough to frost a 2-layer 8-inch cake)
- Category: Frosting
- Method: Whipping
- Cuisine: Italian-American
- Diet: Gluten Free
Description
Italian Meringue Buttercream is a silky, smooth frosting made by whipping a hot sugar syrup into egg whites and then combining the glossy meringue with softened butter and vanilla. This classic Italian-American frosting is perfect for cake decorating and provides a rich but light texture that holds its shape beautifully.
Ingredients
Syrup
- 1 cup granulated sugar
- 1/4 cup water
Meringue
- 5 large egg whites
- 1/4 teaspoon cream of tartar
- 1/4 teaspoon salt
Buttercream
- 1 1/2 cups unsalted butter, softened and cut into cubes
- 1 teaspoon pure vanilla extract
Instructions
- Prepare Sugar Syrup: In a small saucepan, combine granulated sugar and water. Heat over medium heat, stirring gently until sugar dissolves. Stop stirring and allow syrup to boil until it reaches 240°F (soft-ball stage) using a candy thermometer.
- Whip Egg Whites: While syrup heats, place egg whites, cream of tartar, and salt in a stand mixer bowl fitted with a whisk attachment. Whip on medium-high speed until soft peaks form.
- Combine Syrup and Egg Whites: Slowly and carefully pour the hot sugar syrup into the whipped egg whites with mixer on medium speed, avoiding pouring directly onto the whisk. Increase speed to high and continue whipping until mixture is thick, glossy, and cooled to room temperature (approximately 10–15 minutes).
- Add Butter: Reduce mixer speed to medium. Add softened butter cubes one at a time, mixing well after each addition. The mixture may curdle initially—continue mixing until smooth and creamy.
- Finish with Vanilla: Once all butter is incorporated, add vanilla extract and mix until fully combined and the buttercream is silky smooth.
Notes
- If the buttercream appears soupy or curdled, continue mixing as it will come together.
- Ensure the meringue is cool before adding butter to prevent melting.
- Store buttercream in the refrigerator for up to one week or freeze for up to three months.
- Bring buttercream to room temperature and re-whip before use.

