Roasted oysters with warm butter mignonette recipe
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 17 Jul 2025
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Roasted oysters with warm butter mignonette are a delightful high-protein dish that showcases the natural brininess of fresh oysters. The rich, savoury notes of melted butter perfectly complement the tender, succulent oysters, while a drizzle of red wine vinegar infused with finely chopped shallot adds a tangy kick. This elegant preparation elevates the humble oyster to a gourmet experience, making it perfect for special occasions or indulgent evenings at home.
Ideal as an appetiser or a sophisticated starter, these roasted oysters are not only packed with protein but also offer a taste of the sea that is hard to resist. Serve them alongside a crisp salad or some crusty bread to soak up the delicious mignonette, and enjoy a dish that delights the senses while providing a nutritious boost.
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Ingredients for Roasted oysters with warm butter mignonette
1 small shallot, finely chopped
45 ml red wine vinegar
12 oysters in shell
coarse sea salt or kosher salt
60 g unsalted butter, melted
How to make Roasted oysters with warm butter mignonette
Preheat the oven to 200°C (fan oven 180°C).
Stir the shallot, vinegar, and 15 ml of water in a small bowl; set aside.
Line a plate with salt to help hold the oysters in place without spilling their juices, and set aside.
Rinse the oysters, then arrange them flat side up on a wire rack set inside a rimmed baking tray.
Roast the oysters for 4–6 minutes, until they crack open slightly. (They will not open completely like cooked clams; the top shell will separate from the bottom, creating about a 1 cm opening at the rounded end.) Some oysters may open before others—remove them from the oven as soon as they open. Discard any oysters that do not open after 7 minutes.
To finish opening the oysters: Fold a dish towel several times and hold the oyster using the towel.
Slide a butter knife into the opening all the way to the hinge.
Turn the butter knife perpendicular to pop the top shell open completely.
Carefully pull off the top shell by hand, ensuring not to tip the bottom shell and lose any liquid. This should occur easily without much force.
Gently slide the knife under the oyster in the bottom shell to release the muscle, then transfer it to the plate with salt.
Stir the butter into the reserved vinegar mixture and spoon it over the oysters.
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.
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Article history
The information on this page is peer reviewed by qualified clinicians.
17 Jul 2025 | Originally published
Authored by:
UK recipe editors
Peer reviewed by
UK recipe editors

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