Hey there, baking buddies! Are you ready to experience buttercream bliss? This Russian buttercream recipe is my absolute go-to for its unbelievably smooth, intensely rich, and incredibly easy preparation. Forget those complicated, multi-step buttercream recipes that leave you exhausted – this one is a game-changer. You’ll taste the decadent sweetness of the sweetened condensed milk perfectly balanced by the creamy richness of the butter. The texture? Think clouds. Seriously. It’s light, airy, and fluffy enough to make even the most delicate cakes stable. This buttercream isn’t just a frosting; it’s an experience, a luxurious treat that melts in your mouth and leaves you wanting more. The subtle vanilla adds a touch of elegance, and a pinch of salt enhances all the other flavors, creating a surprisingly complex taste profile. It’s the perfect frosting for any occasion, from birthdays to simple weekend treats. Plus, it’s so quick to whip up, you’ll have more time to decorate your masterpiece! Trust me, your taste buds will thank you.
What You’ll Need
This recipe uses simple ingredients that are readily available, making it perfect for even the beginner baker. Here’s what you’ll need:
- Unsalted Butter (2 sticks, 227g): The foundation of our creamy dream! Make sure it’s softened to room temperature for optimal blending. This allows for a smoother, airier final product.
- Sweetened Condensed Milk (1 can, 395g): This provides the luscious sweetness and creamy texture that makes Russian buttercream so special. Don’t substitute with regular milk – the condensed milk is essential!
- Vanilla Extract (1 teaspoon): A touch of vanilla elevates the flavor profile, adding warmth and depth. Use a high-quality vanilla extract for the best results.
- Salt (1/2 teaspoon): A tiny pinch of salt is crucial! It balances the sweetness and enhances the other flavors, preventing the buttercream from tasting overly sugary.

Step-by-Step Instructions
Let’s get baking! Follow these simple steps, and you’ll be frosting your cakes in no time.
- Soften the butter: This is key to success! Make sure your butter is completely softened but not melted. You should be able to easily press your finger into it without much resistance. Leave it out at room temperature for about an hour or two before you start.
- Beat the butter: In a large bowl, using an electric mixer (a stand mixer is ideal, but a hand mixer works too!), beat the softened butter until it’s light and fluffy. This usually takes about 3-5 minutes. Scrape down the sides of the bowl as needed.
- Gradually add the sweetened condensed milk: With the mixer running on low speed, gradually add the sweetened condensed milk, a little at a time, ensuring it’s fully incorporated before adding more. This prevents the buttercream from becoming lumpy.
- Increase the speed: Once all the condensed milk is added, increase the mixer speed to medium-high and beat for another 3-5 minutes, until the buttercream is smooth, creamy, and fluffy. You’ll notice a significant volume increase.
- Add the vanilla and salt: Stir in the vanilla extract and salt. Beat for another minute to combine everything perfectly.
- Check the consistency: Your buttercream should be light, airy, and spreadable. If it seems too thick, you can add a teaspoon or two of milk (whole milk or heavy cream works well) at a time, beating until it reaches your desired consistency. If it’s too thin, chill it in the fridge for about 15-20 minutes to thicken.
- Frost your cakes (or cupcakes, or cookies!): Transfer the buttercream to a piping bag (or a zip-top bag with a corner snipped off) and frost your favorite baked goods. Get creative and have fun with it!
Tips for Success
To ensure your Russian buttercream is perfect every time, keep these tips in mind:
Don’t rush the softening process. Under-softened butter will result in a grainy buttercream. Over-softened butter will create a runny mess. Room temperature is your friend! Always use unsalted butter, as the salt content in salted butter can affect the final flavor. If you accidentally use salted butter, start by reducing the amount of additional salt you add. Start with less condensed milk and add it gradually, it’s easier to add more than take it away. Make sure your bowl and beaters are clean and completely dry; any water will prevent the buttercream from emulsification properly.
Variations to Try
Want to put your own spin on this classic? Here are a few delicious variations:
- Chocolate Russian Buttercream: Add 1/2 cup of unsweetened cocoa powder to the mixture along with the vanilla extract.
- Lemon Russian Buttercream: Add the zest and juice of one lemon along with the vanilla.
- Coffee Russian Buttercream: Stir in 1-2 tablespoons of instant espresso powder (or brewed coffee, if you prefer).
- Peanut Butter Russian Buttercream: Add 1/2 cup of creamy peanut butter.
Storing and Reheating
Store your leftover Russian buttercream in an airtight container in the refrigerator for up to a week. To reheat, allow it to come to room temperature before beating it again with an electric mixer until smooth and fluffy. For longer storage, freeze the buttercream in an airtight, freezer-safe container for up to 3 months. Thaw it in the refrigerator overnight before reheating.
Frequently Asked Questions
Here are some answers to common questions about this recipe:
- Q: Can I use salted butter instead of unsalted butter? A: While not ideal, you can use salted butter but reduce or omit the additional salt in the recipe. Taste as you go to adjust accordingly.
- Q: How long will this buttercream last? A: Stored properly in an airtight container in the refrigerator, it will last for up to a week. Frozen buttercream will keep for up to 3 months.
- Q: Can I make this ahead of time? A: Absolutely! The buttercream is best made the day before you plan to use it, as this allows the flavors to meld beautifully.
- Q: What if my buttercream is too thick or too thin? A: If it’s too thick, add a little milk at a time until it reaches the desired consistency. If it’s too thin, chill it in the refrigerator for 15-20 minutes to thicken.
The Final Word
This dreamy Russian buttercream is incredibly versatile, easy to make, and unbelievably delicious. Its smooth, creamy texture and rich flavor will elevate any cake, cupcake, or cookie to a new level of decadence. Give this recipe a try, and prepare to be amazed by how simple it is to create a professional-quality frosting at home. Let me know in the comments how it turned out – and don’t forget to rate the recipe! I can’t wait to hear what you think!

Russian Buttercream
Equipment
- Mixing bowl Large enough to hold all ingredients
- Electric mixer Handheld or stand mixer
Ingredients
Butter and Sweetener
- 2 sticks Unsalted butter Softened to room temperature
- 1 can Sweetened condensed milk 395g can
Flavorings
- 1 teaspoon Vanilla extract
- 0.5 teaspoon Salt
Instructions
- In a large mixing bowl, beat the softened butter with an electric mixer until light and fluffy.
- Gradually add the sweetened condensed milk, beating on low speed until combined.
- Increase the mixer speed to medium and beat for another 2-3 minutes, until the mixture is smooth and creamy.
- Add the vanilla extract and salt.
- Beat on medium speed for 1 minute to incorporate the flavorings.
- Taste and adjust sweetness or vanilla as needed.
- Transfer the buttercream to an airtight container and refrigerate until ready to use.