2 cups cake flour, sifted before measuring
1 1/2 teaspoons baking powder
3/4 teaspoon salt
1/2 teaspoon baking soda
4 ounces unsweetened chocolate, chopped
1 cup granulated sugar
1 cup light brown sugar
1 stick (8 tablespoons) unsalted butter, softened
2 large eggs, at room temperature
2 teaspoons vanilla extract
1 1/2 cups whole milk, at room temperature
2 cups granulated sugar
3/4 cup buttermilk
1 stick (8 tablespoons) unsalted butter
1 teaspoon baking soda
1 teaspoon vanilla extract
Splash of heavy cream, if needed
Edible silver dragees, for decorating