This dramatic black buttercream stars as crusted lava in the Amazing Erupting Volcano Cake. It also works wonderfully for Halloween cupcakes, or anywhere else you need a black frosting.
1 | cup | unsalted butter |
1 | cup | unsweetened cocoa |
1/2 | cup | black onyx cocoa* |
2 | teaspoons | vanilla extract |
6 | cups | powdered sugar |
2/3 | cup | milk |
*Locate black onyx cocoa at Savory Spice Shop or King Arthur’s Flour |
- In a small saucepan melt the butter.
- Remove from the heat and whisk in the regular and black cocoa and vanilla extract, mixing until fully combined.
- Pour into the bowl of a stand mixer and, alternately add the powdered sugar and milk while mixing on low speed, beginning and ending with powdered sugar. Scrape the bowl after each addition. The frosting will be thin but spreadable.