Black-and-white cookie

OREO

["Think of a popular cream-filled sandwich cookie."]

The clue "Black-and-white cookie" refers to Oreo because the cookie is famous for its two dark chocolate wafers with white cream filling. It’s a straightforward reference—Oreos are widely recognized for their black-and-white appearance, making them a classic example of this type of treat. The name itself has become synonymous with the look, so no wordplay is involved here.