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This fluffy buttercream frosting is light, creamy, and perfectly sweet—everything you want in a homemade frosting. Made with real butter, powdered sugar, and a splash of vanilla, it’s the ultimate frosting for cupcakes and cakes alike.
Once you learn how to make American buttercream from scratch, you’ll never go back to store-bought frosting again. My Homemade Chocolate Frosting and Cream Cheese Frosting are much better than the grocery store versions too!

Why you’ll love this American buttercream frosting recipe!

This recipe is a classic fluffy buttercream frosting, also known as American buttercream, which means it’s made by beating butter and powdered sugar together until smooth and fluffy.
Unlike more complicated frostings, this version doesn’t require cooking or special techniques. It’s quick, dependable, and perfect for everyday baking.
The secret to getting that ultra-fluffy texture is beating the frosting long enough after adding the milk. This step incorporates air, giving you that light, cloud-like finish that makes this frosting so irresistible.
- Light, Fluffy Texture: This frosting whips up beautifully, creating a soft, airy consistency that spreads and pipes like a dream.
- Simple Pantry Ingredients: You only need a handful of basic ingredients you likely already have at home.
- Perfectly Balanced Sweetness: It’s rich and creamy without being overly sugary, making it ideal for cakes, cupcakes, and cookies.
- Versatile for Any Dessert: Use it as-is or customize it with different flavors to match any cake or occasion.
Table of Contents
Ingredient Notes

See recipe card below this post for ingredient quantities and full instructions.
- Unsalted butter – Use high-quality, real butter for the best flavor and texture.
- Powdered sugar – Sweetens and thickens the frosting.
- Vanilla extract – Adds warmth and enhances the flavor.
- Whole milk – Helps create a smooth, spreadable consistency.
- Salt – Balances the sweetness and brings out the flavors.
Mix-Ins for Buttercream Frosting Flavors
- Chocolate: 3/4 cup unsweetened cocoa powder
- Peanut Butter Frosting: ¾ cup peanut butter
- Lemon: zest of 1-2 lemons
- Coffee: 1 tablespoon instant espresso dissolved in 2 tablespoons of water
- Pumpkin Spice: 2 tablespoon pumpkin spice
How to Make Fluffy Buttercream Frosting

- Beat the butter: Place softened butter in a mixing bowl and beat until smooth and creamy.

- Add the powdered sugar: Slowly add the powdered sugar, mixing on low speed until fully combined and smooth. Add the vanilla extract and salt, blending until incorporated.

- Add the milk: Pour in the milk one tablespoon at a time until the frosting reaches your desired consistency. Increase the speed and beat the frosting until it becomes light, airy, and fluffy.

- Use: Pipe or spread the frosting onto cake or cupcakes.

Ways to Use This Frosting
This fluffy buttercream frosting is perfect for:
- Cupcakes of any flavor
- Layer cakes and birthday cakes
- Sugar cookies and cut-out cookies
- Sheet cakes and bars
Storage
- To Store: Keep in an airtight container in the refrigerator for up to 1 week.
- To Use After Refrigerating: Let it come to room temperature, then whip again until fluffy.
- To Freeze: Freeze for up to 2–3 months. Thaw and re-whip before using.
Frequently Asked Questions
It’s a simple frosting made by whipping butter and powdered sugar together with flavorings and liquid.
It likely needs more mixing time. Beating it longer helps incorporate air.
Add powdered sugar gradually until it thickens to your liking.
Yes! Just store it properly and re-whip before using.
More Sweet Treats You’ll Love
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7-Layer Magic Cookie Bars
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Paula Deen’s Not Yo’ Mama’s Banana Pudding
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Fluffy Buttercream Frosting
Ingredients
- 2 sticks unsalted butter
- 5 cups confectioners sugar
- 1 tablespoon vanilla extract
- dash of salt
- 3-4 tablespoons milk
Instructions
- Place the butter in the bowl of a stand mixer fitted with a paddle attachment and beat on medium speed until smooth, about 1 minute.
- Reduce the speed to low, slowly add confectioners, and beat until fully incorporated and smooth, about 3 minutes. Stop the mixer and scrape down the paddle and sides of the bowl with a rubber spatula.
- Add vanilla and salt. Mixing completely.
- Add milk one tablespoon at a time until it’s a smooth consistency. Turn mixer to high and beat until light and fluffy.














Ten stars. I couldn’t stop eating it until I ate so much that u felt sick from all the sugar. My only suggestion is to use a little more vanilla than the recipe calls for. My family loved it and will definitely be making again.
Hi Kasey, how much buttercream do you think it takes to ice a double 12 inch cake. Lol!🙊
I’d like to know how much it makes too. .
😋😋😋😋soooo good👌
Does your buttercream frosting recipe make enough to frost a two layer cake and also use as the filling for the cake?
Thanks, Kasey, for responding to my question. Will let you know how it works out.
So how much does this make? I can’t see the response. Thanks!