Wilton Buttercream Icing Recipe With Meringue Powder: Silky Stability for Perfect Swirls

This buttercream recipe delivers perfect stability and smooth texture for piping intricate designs and creating flawless swirls every time.

Using meringue powder ensures a sturdy yet silky icing that holds its shape, making it ideal for cake decorating and cupcake toppers.

Ingredients for Wilton Buttercream Icing Recipe with Meringue Powder

Nine ingredients deliver professional-grade buttercream with unmatched stability and smoothness for decorating.

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The meringue powder is non-negotiable for structure—Wilton is the gold standard, available at Michaels or Joann Fabrics. Use solid vegetable shortening (Crisco works perfectly) for that pristine white base. Butter must be truly room temperature—not melted, not cold—otherwise the emulsion will break and you’ll end up with a greasy mess.

No meringue powder? This isn’t a true Wilton-style buttercream without it. For the milk, whole milk or heavy cream adds richness, but any milk works in a pinch. Skip the almond extract if you prefer a pure vanilla profile. Powdered sugar must be fresh and lump-free—sift it if it’s been sitting awhile. The salt balances sweetness, so don’t omit it.

Buttercream keeps at room temperature for 2 days in an airtight container, or 2 weeks refrigerated. Freeze for up to 3 months—thaw overnight in the fridge, then rewhip before using. Always store in a cool, dry place away from strong odors.

Step-by-Step Instructions for Wilton Buttercream Icing With Meringue Powder

Master this technique for professional-quality icing with superior stability and smooth texture.

Step 1: Cream the Fats to Aerate the Base

In a large mixing bowl, combine the 1 cup Vegetable Shortening and 1 cup Unsalted Butter (ensuring it’s properly softened to room temperature). Beat on medium-high speed for 3-4 minutes until the mixture becomes pale and fluffy, with a light, airy texture.

This creaming process incorporates air into the fat, which is essential for creating a light, spreadable icing. The vegetable shortening provides stability, while the butter adds rich flavor. Stop when the mixture has visibly lightened in color and increased in volume.

Step 2: Dissolve the Meringue Powder

In a separate bowl, whisk together the 0.5 cup Meringue Powder and 0.25 cup Water until fully dissolved. The water should be cold to properly activate the meringue powder. This creates a stable emulsion that will help your icing hold its shape.

Let the mixture sit for 1-2 minutes to ensure complete hydration. The result should be a smooth, slightly foamy liquid with no visible powder streaks. This step is crucial for the icing’s structure and piping capability.

Step 3: Gradually Incorporate Dry Ingredients

Add the 4 cups Powdered Sugar and 0.25 tsp Salt to the creamed fat mixture. Begin mixing on low speed to avoid creating a sugar cloud. Gradually increase to medium speed and beat for 1-2 minutes until fully incorporated.

The mixture will appear dry and crumbly at first. This is normal. The powdered sugar must be sifted (as specified in ingredients) to prevent graininess in your final icing. Scrape down the bowl as needed to ensure even mixing.

Step 4: Emulsify with Liquids and Flavorings

With the mixer running on low speed, slowly pour in the dissolved meringue powder mixture. Once incorporated, add the 0.25 cup Whole Milk, 2 tsp Vanilla Extract, and 0.5 tsp Almond Extract.

Increase speed to medium-high and beat for 2-3 minutes until the icing becomes smooth and fluffy. The icing should hold soft peaks when the beaters are lifted. If it appears too thick, add additional milk 1 tablespoon at a time until reaching the desired consistency.

Step 5: Test and Adjust Consistency

Stop the mixer and test the icing’s consistency. For piping, it should hold a sharp peak when a spatula is lifted. For spreading, it should be slightly softer but still maintain its shape. If needed, adjust with small amounts of powdered sugar to thicken or whole milk to thin.

This icing will crust slightly when exposed to air, making it ideal for decorating. Use immediately for best results, or store in an airtight container at room temperature for up to 2 weeks. Rewhip briefly before using if it has been stored.

Storing and Reheating This Recipe

🍳 Refrigerator Storage

Your Wilton buttercream icing with meringue powder can be stored in the refrigerator for 3-4 days without sacrificing texture or flavor. Transfer the icing to an airtight container and press plastic wrap directly onto the surface to prevent a crust from forming. This method keeps it fresh and ready for piping or spreading.

❄️ Freezer Storage

For longer storage, freeze your buttercream in an airtight container or heavy-duty freezer bag for up to 2-3 months. To prevent freezer burn, wrap the container in plastic wrap or aluminum foil. Portion the icing into usable amounts before freezing for convenience.

⏰ Reheating Methods

To revive refrigerated or frozen buttercream, thaw it in the refrigerator overnight for best results. For quicker thawing, place the sealed container in a bowl of cold water, changing the water every 30 minutes. Once softened, rewhip the icing with a mixer on low speed until smooth and fluffy.

💡 Quality Preservation

To maintain the silky texture of your Wilton buttercream, avoid exposing it to moisture or heat during storage. If the icing separates or appears grainy after thawing, gently warm it in a double boiler at low heat (below 90°F) while stirring constantly. This restores its creamy consistency without compromising stability.