Cut off the head of the octopus and skin and wash both the head (without innards) and the body as much as possible.
Put on a brew of 3 liters of water, wine, bay leaves, 2 tablespoons of olive oil and 3 corks. Now place the octopus pieces in the lukewarm brew and slowly bring to the boil over medium heat so that it just bubbles very weakly. Then hold the heat for 1 hour. Then turn off the stove and let the octopus steep for another 20 minutes.
Prepare a marinade of lemon juice, cloves of garlic, 4 tablespoons of olive oil, parsley and salt.
Brush the cooked octopus with the marinade and grill over 2 x 4 minutes at maximum heat.