Rinse the octopus, let it cool for just a couple of minutes (2 to 5) and cut it into small pieces.Some recipes don’t call for this step, but by making it you will get a better and softer texture. Once your water is boiling, drop the octopus in the pot and let it boil for 30 minutes.In the meantime put some water to boil in a big cooking pot. The first step is to wash and clean the octopus, even if you bought it in the store and it looks clean because it might have some sand on its tentacles.