Making Stable Buttercream
A buttercream that slumps or separates is usually a sign that the emulsion has broken. Controlling the environment in your mixing bowl is the difference between a smooth finish and a grainy mess.
Temperature is your primary tool
If your butter is too soft or oily, the sugar will slide right off. You want the butter cool to the touch but yielding enough to leave an indent when pressed.
- Stand mixer with paddle attachment
- Rubber spatula
- Fine mesh sieve
What goes in.
- 1 lbunsalted butter, cool room temperature
- 4 cupspowdered sugar, sifted
- 2 tbspheavy cream
- 1 tspvanilla extract
- pinchfine sea salt
Aeration through friction
Beat the butter on medium-high speed for at least five minutes before adding sugar. You are looking for the color to transition from yellow to nearly white and the texture to become light and fluffy.
The method.
Cream the butter
Place the butter in the bowl and beat until it is smooth and noticeably pale, which takes about 5 minutes.
Incorporate sugar
Add the sifted sugar one cup at a time on low speed. Wait for each addition to disappear before adding the next.
Adjust consistency
Add the vanilla, salt, and heavy cream. Increase speed to medium-high for 2 minutes to bring the mixture together.
Remove air bubbles
Switch to a silicone spatula and press the buttercream firmly against the side of the bowl to pop large air bubbles for a smooth finish.
Other turns to take.
Dark Chocolate
Fold in 1/2 cup of melted, cooled semi-sweet chocolate after the cream is added.
Salted Caramel
Replace the heavy cream with 3 tablespoons of room-temperature thick caramel sauce.
When it doesn't go to plan.
Always sift the powdered sugar; lumps are difficult to remove once the fat is incorporated.
If the buttercream feels too soft after mixing, refrigerate the bowl for 15 minutes then beat again for 30 seconds.
Do not use high heat to soften butter; let it sit on the counter naturally to ensure the fat solids remain stable.
The ones that keep coming up.
Why is my buttercream grainy?
You likely added the sugar too quickly or the butter was too cold to integrate properly. Keep mixing; the heat from the friction usually smooths it out.
Can I use margarine?
No. Margarine has a different water-to-fat ratio and a lower melting point, which makes it impossible to achieve a stable structure.
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