Football Cookies

Ingredients (10)

• 1 1/2 cups all-purpose flour
• 3/4 cup Dutch-process cocoa powder
• 1/4 teaspoon salt
• 3/4 cup unsalted butter, room temperature
• 1 1/2 cups granulated sugar
• 1 large egg, lightly beaten
• 1 teaspoon vanilla extract
• 2 cups confectioners' sugar
• 1 1/2 tablespoons meringue
• 4 to 6 tablespoons warm water