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Test Kitchen Approved

Black Onyx Buttercream

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Recipe By Cindy Jones


2 cups

Prep Time

10 Minutes

Recipe By Cindy Jones

This dark, chocolatey American buttercream pairs perfectly with your favorite cake.

Serving Suggestions

This frosting pairs well with Dark Chocolate Cake. Makes enough to frost 2 (9-inch) round cakes.


1 1/2 cups (3 sticks) salted butter, softened

5 cups powdered sugar

1/2 cup milk

Savory Spice ingredients in this recipe

  • Dutch Cocoa Powder

    Cocoa powder comes from beans that grow in pods on the Theobroma cacao tree. Native to many South American countries, these trees now grow all arou...

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  • Black Onyx Cocoa Powder

    This cocoa powder has been alkalized to the extreme, producing a dark, purplish black cocoa that makes for an impressive black-as-coal baked good. ...

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  • Madagascar Vanilla Bean Paste

    Our Madagascar vanilla bean paste is formulated to match Madagascar vanilla extract in flavor, strength, and usage. The paste holds hundreds of van...

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  • Pure Espresso Powder

    Our Pure Espresso Powder is a blend of premium spray-dried coffee powders featuring Brazilian Robusta coffee beans. The flavor is bold with bitter ...

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Add butter, Dutch Cocoa Powder, Black Onyx Cocoa Powder, Madagascar Vanilla Bean Paste, and Pure Espresso Powder to the bowl of a stand mixer fitted with the whisk attachment. Beat on high until well-combined. Reduce speed to low and alternate adding 1 cup powdered sugar and a splash of milk to mixture at a time. After each addition, increase speed until incorporated before reducing speed and repeating. Once full amounts of powdered sugar and milk have been added, beat on high for 2 to 3 min., or until smooth, fluffy, and spreadable.