In a pot of water, boil the plantains, cut in half, until tender.
Meanwhile, thoroughly wash the octopus and remove any particles from its tentacles. Once cleaned, separate each tentacle.
Lay the tentacles on a flat surface and gently tap them with the blunt side of a knife to break down the fibers, making them tender.
Place the tentacles in a bowl, add the white wine, your choice of spices, thyme, garlic, salt, and pepper. Mix well and marinate for a minimum of 20 to 30 minutes.
Once the plantains are ready, remove them from the heat, peel, and mash them in a bowl. Add butter, milk, Parmesan cheese, and sugar. Mix well and adjust the flavors.
After marinating, cook the octopus in a pan with a bit of oil for just 2 minutes. Remove from heat.
To serve, place the puree on the plate first, then arrange the octopus tentacles attractively on top.
Serve immediately and enjoy!