Roasted-Garlic Soufflé
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 16 Jan 2026
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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.
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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

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