Mocha Frosting

This mocha frosting is the easiest way to dress up a chocolate cake or a tray of cupcakes with grown-up flavor. Powdered sugar gets beaten with butter, cocoa, instant coffee, vanilla, and a splash of milk until it turns into a smooth, spreadable swirl that tastes like a cup of cafe mocha in icing form.

The instant coffee does double duty: it deepens the cocoa’s chocolate flavor and adds the unmistakable mocha edge that lifts the frosting beyond plain chocolate.

Pro Tips

• Sift the cocoa and powdered sugar together before adding. Even a small lump leaves brown specks that won’t beat smooth.
• Dissolve the instant coffee in the tablespoon of milk first. Undissolved granules show up as bitter dark flecks in the finished frosting.
• Soften the butter to true room temperature. Cold butter beats lumpy; melted butter makes runny frosting that won’t hold a swirl.
• Beat for at least 2 minutes after adding the milk. Air whipped in at this stage is what gives the frosting its light, fluffy texture instead of dense paste.
• Add milk a few drops at a time if it seems too stiff. Too much liquid at once and the frosting becomes glaze instead of icing.

Variations

• Swap instant coffee for 1 teaspoon espresso powder for a deeper, darker mocha note.
• Add 1 tablespoon of Kahlua, Bailey’s, or Frangelico in place of the milk for a boozy version.
• Replace 2 tablespoons of cocoa with melted dark chocolate for a richer, fudgier texture.