Create a striking assemblage of desserts when you pile these chocolatey cakes drizzled with stark white frosting with other black-and-white treats.
Whisk sugar and milk in a small bowl until smooth, adding enough milk until the glaze is thick but still pourable.
Trim cake tops level. Place, cut side down, on a wire rack set over a baking sheet. Drizzle with glaze. Let stand until glaze is set, about 1 hour.