William Greenberg Desserts • 1946

The black-and-white cookie at William Greenberg Desserts has anchored Upper East Side celebrations since 1946, when the bakery first opened with a focus on traditional kosher treats. Generations return for the same heritage recipes—rugelach, schnecken, and layer cakes—that have marked bar mitzvahs, weddings, and holiday tables across New York. Step inside for a cookie still frosted by hand, exactly as it was nearly eight decades ago.