Green-and-white black-and-white cookies....

Upon leaving Penn Station (NYC) tonight, we passed a bakery selling the green-and-whites (AKA?black-and-whites)....with a little shamrock it the middle!

(The green did seem to taste like chocolate, but perhaps it was power of suggestion....)

Ok, I get it: red-and-greens, red-white-and-blues, black-and-oranges, brown-and-oranges, red-and-whites (heart shaped?)

Any similar sightings in any other parts of the country?