The Best Spots for French Onion Soup on Long Island

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French Onion Soup

Where to find the most comforting bowls of French onion soup across Long Island

Few dishes evoke comfort quite like French Onion Soup. Originating in 18th-century France, this humble dish began as a way for resourceful cooks to transform simple onions, broth, and bread into something deeply satisfying. Over time, it evolved into a bistro favorite — rich beef stock infused with caramelized onions, topped with a toasted crouton and blanketed in gooey, golden cheese.

What makes it so irresistible? It’s the perfect balance — sweet, savory, cheesy, and soulful — a dish that warms both body and spirit. Across Long Island, chefs are ladling out their own takes on this beloved French classic, and each one has something special to offer.

Cavanaugh’s – Blue Point

Since opening on St. Patrick’s Day in 1986, Cavanaugh’s has been a beloved Blue Point landmark known for its cozy atmosphere, fine food, and fun-loving spirit. Their Homemade French Onion Soup ($6.95) is a local favorite — served piping hot in its own crock and topped with not one but two types of melted cheese. With its old-world charm and welcoming staff, Cavanaugh’s is the kind of place where every visit feels like a celebration.

French Onion Soup
French Onion Soup from Cavanaughs

317 Main Street – Farmingdale

At 317 Main Street, “Chopped” champion Chef Eric LeVine brings creative flair to classic American fare. His Five Onion Soup ($11) is a standout — a flavorful symphony of scallions, leeks, red onion, Spanish onion, and chive, all slow-cooked in a sherry wine-beef broth, then topped with herb crouton and Swiss cheese. It’s a sophisticated twist on a timeless favorite.

French Onion Soup
French Onion Soup served in an onion at 317 Main

Vintage Prime Steakhouse – St. James

For a luxurious take on this French classic, head to Vintage Prime Steakhouse in St. James. This elegant restaurant, opened in 2001 by Victoria and Michael Cacaro, is renowned for its USDA Prime steaks and top-tier service. Their French Onion Soup ($15) is layered with Swiss, Gruyère, and Muenster cheeses — a rich and decadent version that perfectly complements their fine dining experience.

French Onion Soup
Vintage Prime Steak House French Onion Soup

Old Street Pub – Smithtown

A Main Street staple since 1969, Old Street Pub is a family-owned favorite known for hearty comfort food and friendly service. Their French Onion Soup Au Gratin ($9) is everything you want in a pub classic — deeply caramelized onions, a savory broth, and a bubbling crust of cheese that’s as nostalgic as it is delicious.

French Onion Soup
French Onion Soup at Old Street

Jackson Hall American Bar & Grill – East Islip

While Jackson Hall is known for its lobster rolls and community spirit, their French Onion Soup ($9.95) deserves its own spotlight. Topped with crispy onions for an extra crunch, this hearty bowl captures Chef Michael Landesberg’s knack for taking comfort food to the next level.

French Onion Soup
Jackson Hall American Bar Grill

Bistro Cassis – Huntington

Transport yourself straight to Paris at Bistro Cassis, where the Soupe à l’Oignon ($17) is authentically French and irresistibly rich. This elegant bistro pairs its traditional onion soup with a refined atmosphere and wine list that make every meal feel like a getaway to the Left Bank.

French Onion Soup
Bistro Cassis

Mill House Inn – Yaphank

Nestled beside Upper Lake in historic Yaphank, The Mill House Inn is beloved for its cozy ambiance and locally sourced ingredients. Their French Onion Soup ($9) is simple, classic, and perfectly executed — the ideal start to a romantic dinner or a comforting meal among friends.

Pace’s Steak House – Hauppauge

With over 30 years of history, Pace’s Steak House in Hauppauge is synonymous with warm hospitality and fine dining. Fourth-generation restaurateur Jimmy Pace takes pride in every dish, and his French Onion Soup ($15.50) is no exception — rich, hearty, and made with the same care that has kept Pace’s a Long Island favorite for decades.

French Onion Soup
Paces Steak House

Buckley’s Irish Pub – Center Moriches

Known as “Center Moriches’ living room,” Buckley’s Irish Pub is where locals gather to share laughs, pints, and hearty pub fare. Their French Onion Soup ($9.50) is served in a crock, topped with melted mozzarella and Swiss cheese, and accompanied by a hunk of crusty bread — pure comfort in every bite.

French Onion Soup
Buckleys

Brasserie by Chef Aless – Massapequa

At Brasserie by Chef Aless, French-inspired flavors shine in every dish. Owners Justin and Aless, both lifelong restaurateurs, bring a touch of European hospitality to the South Shore. Their French Onion Soup Gratinée ($17) is indulgent and beautifully presented — a must-try for soup lovers and Francophiles alike.

French Onion Soup
Brasserie by Chef Aless

Bar Clementine – Islip

Created by the team behind The LakeHouse, Bar Clementine blends Parisian style with Long Island flair. Their Traditional French Onion Soup ($14) fits right into their vision of a “happy hour in Paris” — rich, velvety, and perfectly paired with a glass of wine or craft cocktail in a casually elegant setting.

French Onion Soup
Bar Clementine

The Argyle – Babylon

A longtime Babylon favorite, The Argyle, offers a warm, energetic setting with a menu full of crowd-pleasers. Their French Onion Soup ($14) features a rich beef broth with sherry and thyme, topped with caramelized onions, crostini, and a melty layer of Swiss and Gruyère. It’s refined yet comforting — everything French onion soup should be.

Warm Up with a Bowl of French Onion Soup

Whether you’re craving a simple, homestyle crock or a gourmet version topped with imported cheeses, Long Island has no shortage of incredible French Onion Soups to savor. Each of these restaurants brings its own flavor and flair to the beloved classic, proving that sometimes, the simplest dishes bring the greatest joy.

So grab a spoon and a friend, and discover why French Onion Soup continues to capture hearts — one bowl at a time.

Prices above subject to change

Click HERE for the Best Soup Spots on Long Island!

Photos sourced from the above mentioned businesses Instagram accounts

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