How Do You Make Blackberry Swiss Meringue Buttercream at Home?
If you’re looking for a frosting that’s silky, light, and not overly sweet, Blackberry Swiss Meringue Buttercream is the perfect choice. This elegant frosting combines the smooth texture of Swiss meringue buttercream with the bright, slightly tart flavor of blackberries. It’s ideal for cakes, cupcakes, macarons, and even tart fillings.
The deep purple food coloring also makes it visually stunning, it’s perfect for special occasions, weddings, or simply elevating everyday desserts.
Ingredients
• 4 large egg whites
• 200g granulated sugar
• 250g unsalted butter, softened
• 2-3 tbsp blackberry puree or blackberry flavoring
• 1-2 drops purple food coloring
• 1 tsp vanilla flavoring extract
• Pinch of salt
How to Make Blackberry Swiss Meringue Buttercream
1. Heat the Egg Whites and Sugar
In a heatproof bowl, combine the egg whites and sugar. Place the bowl over a saucepan of simmering water (double boiler method). Whisk continuously until the sugar completely dissolves and the mixture reaches about 70°C (160°F).
2. Whip the Meringue
Transfer the mixture to a stand mixer and beat on high speed until stiff, glossy peaks form and the bowl cools to room temperature.
3. Add the Butter
Switch to medium speed and add softened butter one cube at a time. Continue beating until the buttercream becomes smooth and creamy.
4. Add Flavor
Mix in the blackberry puree, vanilla flavoring extract, and a pinch of salt. If you want a more vibrant purple shade, add a tiny amount of food coloring.
5. Whip Until Smooth
Beat for another 1-2 minutes until the frosting is silky and fully combined.
6. Decorate
Pipe the buttercream onto cupcakes or spread it over cakes.
Best Cake to Pair With Blackberry Swiss Meringue Buttercream
This buttercream pairs beautifully with:
• Vanilla sponge cake
• Lemon cake
• Almond cake
• Macarons
The berry flavor adds a refreshing twist to classic desserts.
FAQ
1. Why is my Swiss meringue buttercream runny?
This usually happens when the meringue is still warm before adding the butter. Let the bowl cool completely before mixing in the butter.
2. Why does my buttercream look curdled?
This is normal during the mixing process. Keep whipping and it will eventually turn smooth and creamy.
3. Can I use blackberry jam instead of puree?
Yes. Just make sure to use a smooth jam without seeds and reduce the sugar slightly if the jam is very sweet.
4. Do I need food coloring?
Not necessarily. Blackberry puree already gives a natural purple tint. Food coloring simply enhances the color if you want a brighter look.
5. Can I pipe this buttercream?
Yes! Swiss meringue buttercream is excellent for piping. It holds its shape well and creates smooth, elegant swirls.