Chocolate Buttercream Frosting

Difficulty: Intermediate
Yield: Approximately 4 cups
Nutritional Information Per Serving (1 of 30 servings): Calories 336, Total Fat 26 g, Saturated Fat 16 g, Carbohydrates 27 g, Dietary Fiber 2 g, Sugar 25 g, Protein 2 g, Cholesterol 49 mg, Sodium 63 mg
Total Time: 25 minutes

Indulge in the ultimate decadent treat with this silky, rich Chocolate Buttercream Frosting! Perfect for elevating cakes or cupcakes, its luxurious chocolate depth and fluffy texture will have you licking the spoon. Ready to create bakery-worthy magic in just 25 minutes?

Ingredients:

1 pound bittersweet chocolate
12 ounces semisweet chocolate
3/4 cup egg whites (from 4 to 5 extra-large eggs), at room temperature
1 1/2 cups granulated sugar
1/4 teaspoon cream of tartar
3/4 teaspoon kosher salt
1 1/2 pounds unsalted butter, softened
3 teaspoons pure vanilla extract
3 teaspoons instant espresso powder dissolved in 1 1/2 teaspoons water
3 tablespoons dark rum (optional)

Instructions:

Chop both chocolates and melt them in a heatproof bowl over simmering water, stirring until smooth. Set aside to cool to room temperature.
In an electric mixer with whisk attachment, whisk egg whites, sugar, cream of tartar, and salt over simmering water until warm (about 5 minutes). Beat on high until chilled and stiff peaks form, around 5 minutes.
On medium speed, add softened butter 1 tablespoon at a time. Scrape bowl, then mix in cooled chocolate, vanilla, espresso, and rum (if using) for 1 minute. If too soft, chill briefly and re-beat for perfect firmness.