Before cooking the octopus, tenderize it by throwing it with force into the kitchen sink, repeating at least 10 times.
Prepare the cooking liquid: In a large pot, bring the water to a boil over high heat.
Submerge the octopus in the water, then remove it immediately.
Repeat this process 2 more times and transfer the octopus to a platter.
Add the bay leaf, onion, peppercorns, parsley, and salt to the pot and bring it to a boil again over high heat.
Return the octopus to the pot, reduce the heat to low, cover, and simmer until tender, for about 1¾ to 3 hours, depending on the size of the octopus.
Drain the octopus, discard the bay leaf, and let it cool.
Scrape off any loose skin.
Cut the body and tentacles into bite-size pieces.
Prepare the dressing: In a medium bowl, combine all the dressing ingredients.
Add the octopus to the dressing and let it marinate overnight in the refrigerator.
Serve the marinated octopus cold or at room temperature.
Notes / Tips / Wine Advice:
Wine Advice:
Pair this Spanish Marinated Octopus with a crisp and acidic Spanish white wine such as Albariño or Verdejo. These wines will complement the flavors of the dish and refresh the palate.