Your plan for Mother’s Day weekend (May 10, 2026)

If you’re deciding where to book Mother’s Day in Back Bay, clarity matters—especially when reservations are filling fast. Here’s the weekend format at Sonsie:

• Brunch: Saturday & Sunday (Mother’s Day is Sunday, May 10, 2026)
• Dinner: Friday through Sunday
• Specials: Featured Mother’s Day items across brunch, lunch, and dinner
• Flowers: Optional bouquet add-on—add to your reservation by May 7, 2026 (or add to the final check)

Ready to secure your table? Use our reservation link below (or call if you prefer a personal touch).

Reserve on Resy for Sunday, May 10, 2026  |  Call 617-351-2500

Why Sonsie is made for a Mother’s Day celebration

Some places feel right for a celebration the moment you walk in. Sonsie is designed for exactly that kind of occasion: a classic Newbury Street institution with a cosmopolitan spirit—sophisticated, yes, but always comfortable .

Whether you’re toasting over brunch, lingering over lunch between Back Bay errands, or making dinner the main event, Mother’s Day weekend is the perfect time to enjoy Sonsie’s day-to-night rhythm—coffee to late-night—and the kind of table that welcomes everyone .

Mother’s Day menu highlights (sample specials)

Our Mother’s Day specials are built to feel celebratory without losing the Sonsie signature: international inspiration, seasonal brightness, and the confidence of a kitchen that honors the classics .

Brunch (Saturday & Sunday)

• Quiche of the Day (a classic brunch staple, done with care)
• Turkish Egg and Spiced Lamb Flatbread (savory, bold, and beautifully balanced)
• Roasted Joyce Farms Chicken and waffle (comfort with a celebratory edge)

Lunch (Mother’s Day weekend)

• Spring Asparagus and Crab (fresh, seasonal, and elegant)

Dinner (Friday–Sunday)

• Roasted Australian Rack of Lamb (a classic centerpiece for a special night)
• Pan Seared Dayboat Scallops (refined, coastal, and timeless)
• Lemon Pistachio Mousse Tart (a bright, memorable finish)

For our full offerings, visit the Menu page .

Add flowers to your reservation (deadline: May 7, 2026)

Want to make Mother’s Day feel effortless? You can add a bouquet to your reservation as an upgrade. Please note the deadline: add flowers by May 7, 2026. (If you miss the deadline, you may still be able to add flowers to the final check.)

If you’re booking for a group—or coordinating family schedules—locking this in early is the simplest way to keep the day smooth and joyful.

How to make the most of your Mother’s Day at Sonsie

1. Reserve early: Mother’s Day weekend books quickly—especially for prime brunch seating.
2. Choose your daypart: Brunch brings bright, classic comfort; dinner leans refined and celebratory.
3. Make it a Newbury Street day: Pair your meal with Back Bay shopping and a walk through the neighborhood.
4. Make it extra: Add the bouquet by May 7 and let us handle the finishing touch.

Planning something beyond Mother’s Day—like a family gathering later in the spring? Explore Private Events .

FAQs: Mother’s Day weekend at Sonsie

Do I need a reservation for Mother’s Day weekend?

Reservations are strongly recommended—Mother’s Day weekend demand is high. Book via Resy or call 617-351-2500.

Is brunch offered on Mother’s Day Sunday?

Yes—brunch is offered Saturday and Sunday (including Mother’s Day Sunday, May 10, 2026).

When is the deadline to add a bouquet?

Please add the bouquet to your reservation by May 7, 2026. (A flowers option may also be available on the final check.)

Where can I see the full menu?

Visit our Menu page .

Do you take reservations year-round?

Yes—use our Reservations page to plan your next visit .

Related links

• Reservations
• Menu
• Private Events

Reserve your Mother’s Day weekend table

If Mother’s Day weekend is your moment to celebrate, we’d love to host you at Sonsie—an enduring Newbury Street classic with international spirit and Back Bay warmth . Reserve now, and don’t forget: bouquet add-ons must be added by May 7, 2026.

Reserve on Resy  or call 617-351-2500.