For the Cupcakes:
- 6 ounces bittersweet chocolate, chopped
- 2 sticks unsalted butter, cut into pieces
- 1 1/2 cups sugar
- 3/4 cup cake flour
- 1/2 teaspoon salt
- 4 large eggs
- 1/2 teaspoon vanilla extract
For the Icing:
Make the cupcakes: Preheat the oven to 350 degrees F. Line two 24-cup mini muffin pans with paper liners. Melt the chocolate and butter in a heatproof bowl set over a saucepan of simmering water (do not let the bowl touch the water). Whisk until smooth, then remove the bowl; keep the water simmering in the saucepan. In another bowl, whisk the sugar, flour and salt; mix into the melted chocolate. Add the eggs, one at a time, then whisk in the vanilla until smooth.
Meanwhile, make the icing: Whisk the sugar, egg whites, lemon juice and salt by hand in the bowl of a stand mixer. Empty the tea bags and add the loose tea to the bowl, then set the bowl over the saucepan of simmering water and whisk until the mixture is hot and the sugar dissolves, about 2 minutes. Transfer the bowl to the stand mixer and beat with the whisk attachment on medium-high speed until the mixture holds stiff peaks, about 5 minutes. Transfer to a large resealable plastic bag, snip the corner and pipe the icing onto the cupcakes.
Photograph by Stephanie Foley