This buttercream tastes sweet and rich with a clean butter finish, and the one thing that sets this version apart is a quarter teaspoon of salt dissolved into the vanilla before anything else goes in the bowl.
Total time: about 10 minutes to mix, plus 15 to 20 minutes chilling.
Temperature makes or breaks buttercream every time. Butter must bend without cracking yet hold its shape without puddling, which means pulling it from the fridge an hour ahead and checking with a thumb press.
Too cold and the sugar stays gritty; too warm and the frosting slumps off the cake.
I learned this with a wooden spoon when my mixer cord would not reach, and the frosting still came together, though my arm felt it the next day.
Ingredients
American buttercream asks for five things you already have, or can grab in one aisle.
- 1½ pounds unsalted butter, room temperature. It should bend without cracking and hold its shape without puddling. I pull mine from the fridge about an hour ahead and press a thumb into the wrapper to check. Too cold and the sugar never smooths out; too warm and the frosting slumps on the cake.
- 2 pounds powdered sugar. A full bag from the baking shelf is usually 2 pounds, so you can skip the measuring step.
- 2 tablespoons heavy cream. Whole milk works if that is what you have, but the cream gives a looser, silkier texture that spreads without dragging.
- 2 teaspoons vanilla extract. Pure, not imitation. The difference costs a dollar and shows in the finish.
- 1 teaspoon salt. Fine table salt dissolves clean; kosher can leave faint crunch if it does not beat in fully.
No specialty equipment.
A hand mixer and a large bowl are enough. I have made this with a wooden spoon when the mixer cord would not reach, and it still comes together, though my arm felt it the next day.
Method
- Cream 1/2 cup softened butter and 1/2 cup shortening on medium speed until fluffy, then add 1 1/2 teaspoons clear vanilla extract. Beat in 5 cups confectioners’ sugar one cup at a time, keeping the mixer on medium so the sugar doesn’t fly everywhere. The mixture will look clumpy at first; that’s normal.
- Add 2 to 3 tablespoons milk one tablespoon at a time, then beat on high until completely blended, about 2 to 3 minutes. The buttercream should lighten in color and turn fluffy and smooth. If it needs stiffening for piping, beat in more sugar; if it needs thinning for spreading, add more milk a tablespoon at a time. Heavy cream works better than milk for a lighter, airier texture that holds its shape.
- Apply a thin crumb coat to lock in loose crumbs. This first layer doesn’t need to look pretty; it just needs to seal the cake surface so crumbs don’t mix into your final finish.
- Chill the cake 15 to 20 minutes so the buttercream firms up. Cold hardens the butter in the mixture, giving you a solid base to smooth against.
- Apply the final buttercream layer thicker than the crumb coat. Smooth with a metal spatula or scraper, running it around the sides and across the top in even passes. For extra-smooth sides, warm the metal scraper under hot tap water, wipe it dry, and glide it over the surface; the slight heat melts imperfections flat.
- Decorate with piping or designs as desired. This recipe yields 3 1/2 cups, enough to cover and pipe an 8- or 9-inch layer cake with some left over for detail work. Total active time runs about 10 minutes for the buttercream itself, plus 15 to 20 minutes chilling.
To cut the sweetness I usually sprinkle some salt in the vanilla (so it will dissolve) before proceeding with recipe as instructed.
— Food.com
That salt trick matters more than most recipes admit.
A quarter teaspoon dissolved into the vanilla keeps the frosting from reading as pure sugar on the tongue, which lets the butter flavor come through and gives the finished cake a more grown-up balance.
Types of Buttercream
The seven buttercream styles each handle differently under a spatula, so I match the type to the finish I need.
- American buttercream is the one I point beginners toward: confectioners’ sugar and butter, no eggs, no thermometer. It crusts fast, forgives mistakes, and reads very sweet on the tongue.
- Swiss meringue buttercream wins for a refined, smooth finish. Egg whites and sugar get heated to 140°F, then whipped cool before butter goes in. The result is silky, far less sugary than American, and pipes roses or basketweave cleanly. Owners on Reddit mention it tastes "lovely" and pipes "like a dream," though they warn it takes time.
- Italian meringue buttercream adds hot sugar syrup to whipping whites, so it demands that candy thermometer. Italian meringue buttercream gives you the most stable foam of the meringue types; intricate designs hold their shape without sagging, and the texture stays light.
- Russian buttercream uses only butter and sweetened condensed milk. Fewer ingredients, rich and silky, and it sits in the less-sweet camp alongside Swiss meringue.
- Cream cheese buttercream brings tang that pairs well with red velvet or carrot cake. One Reddit user loves the flavor but notes they have never trusted it for intricate piping work.
- Not Too Sweet buttercream lands between American and meringue styles, built for balance when the cake itself is already sugary.
- Flavored variants start from any base. Chocolate and coffee are the ones I reach for most, and Swiss meringue takes additions like lemon, white chocolate, or strawberry without breaking.
For stability under detailed piping, Italian meringue holds the edge. For least sweet overall, Swiss meringue and Russian buttercream tie in my book, with Not Too Sweet close behind.
Smoothing Techniques
A crumb coat locks in loose crumbs and gives you a smooth base for the final layer of buttercream. I apply it thin, chill the cake 15 to 20 minutes until the buttercream firms up, then add the outer coat.
Metal spatulas and scrapers do the smoothing work; if the buttercream resists, I run the tool under hot tap water or dip the long edge in boiling water, wipe it dry, and glide it over the surface.
The slight melt fills imperfections. Acetate strips work too, though I see them less often; they bend to the cake’s curve for an even finish.
Butter temperature decides whether this succeeds. Room temperature means soft to the touch, not melted.
Too soft, and the buttercream turns greasy instead of whipping full of air. If your butter feels like it just left the fridge, microwave in 10 to 15 second bursts until it yields.
Storage and Shelf Life
Buttercream holds at room temperature for 24 hours without any change in texture, which is usually enough for a cake that goes from kitchen to party table in a single day.
After that, refrigeration buys you five days of storage, though the cold hardens the butter and turns the frosting stiff. Let it sit out for an hour or two before serving, and it softens back to something spreadable.
Freezing works for months if you pack the buttercream airtight, pressing plastic wrap directly against the surface to keep freezer odors out.
Thaw it overnight in the refrigerator, then re-whip on medium speed before you use it. The butter separates slightly in the cold, and five minutes with the mixer brings the emulsion back together into that silky finish you started with.
Making buttercream ahead is the move that saves a weeknight cake project.
I can mix a batch on Sunday, freeze it, and pull it out Wednesday for a Saturday birthday without touching the stand mixer again on a busy Thursday evening.
Common Mistakes
Most buttercream problems come down to temperature or patience, and both are easy to fix once you know what to look for.
- Butter too cold and the mixture turns clumpy or gritty. If you’re starting from the fridge, microwave in 10–15 second bursts until your finger presses in easily but the stick still holds its shape when you lift it.
- Butter too soft and the buttercream goes greasy or won’t hold on the cake. When that happens, stick the bowl in the refrigerator for a couple of minutes, mix, and repeat until it firms up. Watch the edges so they don’t harden into lumps.
- Not enough whipping leaves the texture dense and the flavor flat. After adding sugar, keep the mixer running several minutes until the color lightens and the buttercream turns fluffy. The difference between acceptable and excellent is usually just more time.
- Serving temperature matters too. Cold buttercream tastes like a stick of butter; room temperature lets the flavor come through.
Coloring Buttercream
Gel food coloring is the only way to get truly bold, saturated buttercream without throwing off the texture.
Liquid drops add too much water and can break the emulsion, so I keep a set of concentrated gels on hand for anything beyond pale pastels.
White, red, and black each demand their own approach. Bright white buttercream needs a tiny touch of violet to cancel the yellow tint from butter, not more white pigment.
Red and black are the colors that frustrate home bakers most; both require far more gel than intuition suggests, and adding it all at once gives a bitter, metallic taste.
I build red in stages over several hours, letting the color deepen as it rests. Black starts from a chocolate base so you’re not dumping half a bottle into plain buttercream.
Most tutorials on buttercream cake decorating skip this part entirely, leaving you to hunt down separate guides instead of learning the technique in one place.
That gap is worth noting: if you’re decorating a birthday cake tonight, you need the method in front of you, not a chain of links.
Flavor Pairings
Cream cheese frosting belongs on carrot cake and red velvet, full stop.
The tang cuts the sweetness and stands up to the warm spices or cocoa in those batters in a way vanilla buttercream simply does not. I keep a batch ready when either cake is on the menu.
For chocolate cake, chocolate buttercream is the obvious match, though coffee buttercream deserves more attention than it gets.
A little espresso in the frosting deepens the chocolate flavor of the cake without making the whole thing taste like a morning drink.
The same logic works in reverse: vanilla cake with chocolate buttercream gives you the frosting-forward experience of a cupcake shop treat.
American buttercream handles all of these flavor additions without fuss. A former wedding cake decorator of twenty-five years swears by the powdered-sugar-and-butter base for exactly this kind of adaptability.
Egg-based buttercreams like Swiss or Italian are smoother and less sweet, but for a birthday cake at home, the classic version wins on simplicity.
Frequently Asked Questions
What is the easiest frosting for beginners?
American buttercream is the easiest frosting to start with.
It needs only five common ingredients, no eggs or candy thermometer, and it forgives mistakes better than meringue-based styles. The recipe above spreads smoothly and pipes well with just a hand mixer and a large bowl.
Which frosting is less sweet than American buttercream?
Swiss meringue, Russian, and Not Too Sweet buttercream all dial back the sugar.
Swiss meringue tastes silky and refined without reading as pure sugar on the tongue. Russian buttercream uses only butter and sweetened condensed milk for a rich, less-sweet result.
How do I make buttercream bright white, red, or black?
Each color needs its own approach.
For bright white, add a tiny touch of violet gel to cancel butter’s yellow tint. Build red in stages over several hours so the color deepens without turning bitter.
Start black from a chocolate base so you are not dumping in half a bottle of gel. Use only gel food coloring; liquid drops add too much water and can break the emulsion.
Can buttercream frosting be frozen?
Yes, buttercream freezes for months if you press plastic wrap directly against the surface to block freezer odors.
Thaw it overnight in the refrigerator, then re-whip on medium speed for about five minutes to bring the emulsion back to a silky finish.
What frosting goes best with carrot cake or red velvet cake?
Cream cheese frosting is the classic match for both.
The tang cuts through the sweetness and stands up to warm spices or cocoa in a way vanilla buttercream does not. One baker loves the flavor but notes they have never trusted it for intricate piping work.
How do you apply butter icing on a cake?
Start with a thin crumb coat to seal in loose crumbs, then chill the cake 15 to 20 minutes until the buttercream firms up.
Apply the final layer thicker than the crumb coat, and smooth with a metal spatula or scraper in even passes. For extra-smooth sides, warm the scraper under hot tap water, wipe it dry, and glide it over the surface.
What kind of buttercream do professionals use?
Professionals choose the type to match the job. Italian meringue buttercream wins for stability under detailed piping because the hot sugar syrup creates the most stable foam.
Swiss meringue is prized for a refined, silky finish on wedding cakes. For kids’ parties, many pros reach for American buttercream because its familiar sweetness and forgiving texture suit the occasion.
What type of cake is best with buttercream frosting?
American buttercream adapts to nearly any cake flavor. Chocolate cake pairs with chocolate or coffee buttercream; the espresso deepens the chocolate without tasting like a morning drink.
Vanilla cake with chocolate buttercream gives a frosting-forward experience. Cream cheese buttercream belongs on carrot cake and red velvet.
What’s the best butter for buttercream?
Use unsalted butter at true room temperature: it should bend without cracking and hold its shape without puddling.
Pull it from the fridge about an hour ahead and press a thumb into the wrapper to check. Too cold and the sugar never smooths out; too warm and the frosting slumps on the cake.
