Skip to main content

Roasted-Garlic Soufflé

This roasted garlic soufflé offers a sophisticated twist on a French classic, trading sharp intensity for the mellow, caramelised sweetness of slow-roasted garlic. Infusing the milk with aromatic bay, cloves, and thyme creates a complex flavour profile that perfectly complements the nutty richness of the Gruyère and parmesan. It is a show-stopping vegetarian centrepiece that feels incredibly indulgent yet remains light and airy in texture.

Ideal for an elegant weekend lunch or a vegetarian dinner party, this dish is traditionally served in a large gratin dish for a more relaxed, communal feel. The recipe relies on a well-made béchamel and properly whipped egg whites to achieve its signature rise. Serve it immediately alongside a crisp green salad with a sharp vinaigrette to balance the savoury depth of the roasted garlic and melted cheese.

Continue reading below

Ingredients for Roasted-Garlic Soufflé

  • 3 large heads garlic, left whole, plus 3 garlic cloves, smashed

  • 1 tablespoon olive oil

  • 600ml whole milk

  • 1 medium onion, sliced

  • 3 large thyme sprigs plus 1 teaspoon thyme leaves

  • 1 California bay leaf or 2 Turkish

  • 1 whole clove

  • 1/8 teaspoons black peppercorns

  • 7 tablespoons unsalted butter, divided

  • 1 1/2 tablespoons fine dry bread crumbs

  • 5 tablespoons plain flour

  • 4 large eggs, separated, plus 4 additional egg whites

  • 350ml grated Parmigiano-Reggiano (90g)

  • 1/4 teaspoons grated nutmeg

  • 180ml grated Gruyère (60g)

How to make Roasted-Garlic Soufflé

Preheat oven to 204°C with rack in middle.

Trim 1/4 inch from tops of whole heads of garlic, then put heads on a large sheet of foil and drizzle each with 1 teaspoon oil. Wrap heads together in foil and roast until very tender, 50 minutes to 1 hour. Cool to warm, then squeeze garlic from skins.

Meanwhile, bring milk, smashed garlic cloves, onion, thyme sprigs, bay leaf, clove, and peppercorns just to a boil in a medium saucepan, then remove from heat and cover. Let steep 30 minutes.

Butter a 12-inch oval (2-quart) gratin dish with 1 tablespoon butter, then sprinkle bottom and side with bread crumbs and chill until ready to use.

Melt remaining 90ml butter in a heavy medium saucepan and whisk in flour. Cook roux over low heat, whisking constantly, 5 minutes.

Strain milk mixture through a fine-mesh sieve, then add to roux, whisking until smooth. Bring to a boil, whisking, then simmer béchamel, whisking, 3 minutes. Remove from heat and vigorously whisk in yolks 1 at a time. Whisk in roasted garlic, parmesan, nutmeg, 3/4 teaspoons salt, and 1/4 teaspoons pepper and transfer to a bowl.

Beat egg whites with a pinch of salt using an electric mixer until they just hold stiff peaks, then stir one third of egg whites into yolk mixture. Fold in Gruyère, then remaining whites. Transfer mixture to gratin dish, smoothing top, and sprinkle with thyme leaves.

Bake soufflé until set and browned on top, 20 to 25 minutes.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 16 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
flu eligibility checker

Ask, share, connect.

Browse discussions, ask questions, and share experiences across hundreds of health topics.

symptom checker

Feeling unwell?

Assess your symptoms online for free

Sign up to the Patient newsletter

Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.

Please enter a valid email address

By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.