Food Edition›Cook›French›Dessert›Making Stable Buttercream
15 minEasyServes Covers one 9-inch cake
French · Dessert

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.

Total time
15 min
Hands-on
15 min
Serves
Covers one 9-inch cake
Difficulty
Easy
Before you start

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
Ingredients

What goes in.

  • 1 lbunsalted butter, cool room temperature
  • 4 cupspowdered sugar, sifted
  • 2 tbspheavy cream
  • 1 tspvanilla extract
  • pinchfine sea salt
The key technique

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.

Step by step

The method.

  1. Cream the butter

    Place the butter in the bowl and beat until it is smooth and noticeably pale, which takes about 5 minutes.

  2. Incorporate sugar

    Add the sifted sugar one cup at a time on low speed. Wait for each addition to disappear before adding the next.

  3. Adjust consistency

    Add the vanilla, salt, and heavy cream. Increase speed to medium-high for 2 minutes to bring the mixture together.

  4. 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.

Variations

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.

Tips & troubleshooting

When it doesn't go to plan.

Tip

Always sift the powdered sugar; lumps are difficult to remove once the fat is incorporated.

Tip

If the buttercream feels too soft after mixing, refrigerate the bowl for 15 minutes then beat again for 30 seconds.

Tip

Do not use high heat to soften butter; let it sit on the counter naturally to ensure the fat solids remain stable.

Questions

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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