Sous Vide Octopus
Sous Vide Octopus
Octopus has a reputation for turning rubbery the moment you look at it wrong, which is exactly the problem sous vide solves. A long, gentle bath, well below boiling, gives the collagen packed into the tentacles time to melt into gelatin, so what comes out the other end is tender rather than tough, with none of the babysitting a pot of simmering water demands.
The bag itself needs almost nothing: a whole cleaned octopus, a little olive oil, a pinch of salt. Everything else, herb sprigs in the bag, a marinade for color, is optional and easy to skip without losing anything. After the water bath, the octopus goes straight into an ice bath to stop the cooking, then gets dried thoroughly, uncovered in the fridge overnight if there’s time, before a hard sear or grill. That last high-heat step isn’t optional: it’s what turns pale, water-bath-soft flesh into something with real char and contrast.
This isn’t a dish tied to one country’s kitchen. It borrows from Galician and Japanese octopus traditions in how it ends up served, but the sous vide method itself is a modern workaround for an old, finicky ingredient rather than a recipe with deep roots. That makes it flexible: serve the charred tentacles whole as tapas with a squeeze of lemon, slice them over chimichurri or a citrus-and-olive vinaigrette, or fold cold slices into a salad with no char at all.
It also works well as a dinner-party centerpiece, since most of the cooking happens hours ahead and completely unattended, leaving only a few minutes of hot, hands-on searing right before serving. Keep the accompaniments bright and acidic: lemon, chimichurri, or aioli all cut through the richness well.
Ingredients
Serves 4
- 1.5-2 kg whole octopus, cleaned
- 1 tbsp olive oil, plus more for finishing
- 1 pinch kosher salt (or sea salt), plus more to season after searing
- 2-3 sprigs fresh thyme, optional
- 2-3 sprigs fresh rosemary, optional
- lemon wedges, to serve
- flaky salt, to serve
- chimichurri (or citrus-olive vinaigrette, or aioli), to serve
Directions
Clean the octopus first if it isn’t already: push the beak out through the opening at the center of the tentacles, remove the eyes and entrails from the head, and rinse thoroughly inside and out to clear out any sand or excess salt.
Preheat a sous vide water bath to 170°F (77°C). Place the whole octopus, or the tentacles separated if you prefer, in a vacuum bag or a zip-top bag along with the olive oil, a pinch of salt, and the thyme and rosemary sprigs if using. Seal with a vacuum sealer or by the water displacement method, then submerge and cook for 5 hours.
Lift the bag out of the bath and plunge it straight into an ice bath until fully cooled. Remove the octopus, separate the tentacles from the body if that hasn’t already been done, and pat everything dry thoroughly with paper towels. For a better char, leave it uncovered in the fridge for a few hours, or overnight, to air-dry further.
Heat a grill, grill pan, or cast-iron skillet until very hot. Brush the octopus lightly with oil and season with salt, then sear or grill for 30-60 seconds per side, about 4-5 minutes total, until deeply charred at the edges.
Serve immediately, whole or sliced, finished with a scattering of flaky salt, lemon wedges, and the sauce of your choice.
Notes
A range of temperature and time combinations all get octopus fully tender, so pick whichever fits your schedule. 167-171°F (75-77°C) for 5-9 hours is the classic slow approach; 176-180°F (80-82°C) for 2-4 hours gets there faster with no meaningful difference in the final texture.
Expect the octopus to lose roughly two-thirds of its raw weight during cooking, so buy more than the finished portion size suggests.
Drying is not optional if real char matters: pat thoroughly, and air-dry uncovered in the fridge for a few hours or overnight for the crispest edges.
Frozen octopus works fine here. Thaw it fully before cleaning and bagging.
See Also
Aioli (Traditional Provencal Garlic Emulsion)
Ajada (Galician Garlic and Paprika Sauce)
Beef Cuvette - Red Meat Sous Vide
Chimichurri
