These black and white cookies are soft and tender with a hint of lemon. They are topped with a perfect ratio of rich chocolate and creamy vanilla icing.
Use a 1/4 cup ice cream scoop or dry measuring cup to drop the batter 3″ apart onto the prepared baking sheets.
Bake for 15-17 minutes or until the edges are golden and the top of the cookies spring back when lightly touched. Cool for 5 minutes then transfer the cookies to a wire rack to cool completely before icing.
To make the icing: In a small bowl, melt the butter in the microwave, then whisk in the powdered sugar and vanilla extract.
Add in 1 tablespoon of hot water at a time until you reach a smooth but thick consistency like honey.
2 to 3 tablespoons hot water
Using an offset spatula or spoon, draw a straight line down the middle of the flat side of the cookie. Fill in one half of the cookie with the vanilla icing. Repeat with all the cookies. (Note: If the icing thickens while you are frosting, pop it in the microwave for 10 seconds to warm it back up.)
Add the cocoa powder to the vanilla icing and add 1 teaspoon of hot water at a time until the same consistency is reached. Frost the other side of the remaining cookies.
2 tablespoons unsweetened cocoa powder, 3-4 teaspoons hot water
Let stand for about 30 minutes for the icing to set before serving.
Notes
Leftovers can be stored in an airtight container at room temperature for up to 3 days.