Is there a happy hour at William Greenberg Desserts?
William Greenberg Desserts has been an Upper East Side institution since 1946, best known for a cake-like black-and-white cookie that routinely tops the city’s best-of lists. The Madison Avenue shop is a kosher-certified bakery turning out celebration cakes, rugelach, schnecken, linzer cookies, and other old-school pastries. It’s a neighborhood go-to for custom cakes and a boxed-cookie run.
This is a bakery counter rather than a sit-down cafe, so expect a quick in-and-out for cookies, cakes, and pastries. The kosher certification is a genuine differentiator on the Upper East Side, and the shop ships nationwide for anyone chasing that black-and-white from afar.
What to Expect
There is no happy hour at William Greenberg Desserts because it’s a kosher bakery with no bar and no alcohol service. The value here is the baked goods themselves, led by the signature black-and-white cookie and made-to-order cakes rather than any discounted hour.
The Room
The Madison Avenue location is a compact bakery storefront and counter, geared toward pickup and custom-cake orders rather than sit-down seating. It’s a classic UES neighborhood shop.
Who William Greenberg Desserts Is For
| Occasion | Why It Works |
|---|---|
| Cookie run | The black-and-white cookie is the signature draw and regularly voted New York’s best. |
| Celebration cake | A longtime Upper East Side source for made-to-order birthday, anniversary, and wedding cakes. |
| Kosher dessert | Fully kosher-certified, a real differentiator for the neighborhood’s dessert needs. |
| Holiday baking | Classics like rugelach, schnecken, and hamantaschen make it a seasonal staple. |
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William Greenberg Desserts FAQ
Does William Greenberg Desserts have a happy hour?
No. It’s a kosher bakery with no bar or alcohol service, so there’s no happy hour. The draw is the cookies, cakes, and pastries.
What is William Greenberg Desserts known for?
Its black-and-white cookie, which is frequently named the best in New York, along with custom celebration cakes and classic Jewish-American pastries.
Is William Greenberg Desserts kosher?
Yes. The bakery is kosher-certified, which sets it apart among Upper East Side dessert shops.
What are the hours at William Greenberg Desserts?
The Madison Avenue shop is generally open daily, roughly 8 AM to 6:30 PM on weekdays with shorter weekend hours. Confirm around Jewish holidays.
Happy hour times and deals last verified June 2026. Details can change — confirm with William Greenberg Desserts before visiting for a specific deal.