Step 1: Whip the Butter
In a large mixing bowl, beat softened butter with a stand or hand mixer until pale, fluffy, and smooth (about 5–7 minutes).
Step 2: Add the Condensed Milk
Slowly stream in the sweetened condensed milk while mixing on medium speed. Continue to whip until the frosting is light, silky, and well combined.
Step 3: Flavor It (Optional)
Add vanilla extract for warmth, cocoa powder for chocolate buttercream, or a touch of fruit puree for fruity variations.
Step 4: Use Immediately
Spread over cakes, pipe onto cupcakes, or use as a filling. The frosting will firm slightly as it chills, making it stable for layering.
Tips for Perfect Russian Buttercream
- Room temperature butter is key: Too cold, and it won’t whip; too warm, and it gets greasy.
- Don’t overbeat: Stop once it’s smooth—overmixing can cause curdling.
- Fix curdling: If it separates, warm the bowl slightly (just a few seconds over steam or in the microwave) and whip again.
- Chill to set: Great for frosting cakes that need clean, sharp edges.
Variations to Try
- Chocolate Russian Buttercream – Add ⅓ cup unsweetened cocoa powder.
- Coffee Buttercream – Dissolve 1 tablespoon instant coffee in 1 tablespoon hot water and mix in.
- Berry Swirl – Fold in a few tablespoons of thick berry jam for a fruity twist.
Storing Your Buttercream
- Room temperature: Safe for up to 6–8 hours if the environment is cool.
- Refrigerator: Store in an airtight container for up to 1 week. Bring to room temp and rewhip before using.
- Freezer: Freeze for up to 3 months. Thaw overnight in the fridge, then rewhip.
Why Bakers Swear By It
Russian Buttercream has the buttery richness of Swiss buttercream without the complex cooking, and the light sweetness of whipped cream without being unstable. It’s the kind of frosting that elevates a simple sponge cake into something elegant, while also sturdy enough for elaborate layer cakes.
Final Spoonful
Smooth, silky, and just the right amount of sweet, Russian Buttercream Frosting is a baker’s secret weapon. With only a handful of ingredients and a few minutes of whipping, you’ll have a frosting that feels luxurious yet approachable.
So the next time you’re baking a cake or cupcakes, skip the sugar overload and try this frosting—you might just fall in love with its simplicity and elegance.