Some cookies impress you with their good looks. Sweet, dense, and chewy, coconut macaroons impress you with their taste. This one, loaded with flavors from German chocolate cake, is sure to become a year-round favorite. More than anything, this cookie was inspired by the signature coconut-pecan frosting the cake is famous for. Sweetened condensed milk helps bind the cookie together, sweeten it, and, once reduced, decorate the outer layer as well.