Cupcake: All-purpose flour, unsweetened natural cocoa powder, espresso powder, baking powder, baking soda, salt, eggs, granulated sugar, brown sugar, vegetable oil, pure vanilla extract, buttermilk.
Frosting: Unsalted butter, confectioners' sugar, unsweetened natural or dutch-process cocoa powder, whole milk, pure vanilla extract, food coloring, salt.
Edible chocolate and gummy easter eggs for decoration.