Arroz de polvo (octopus rice)

1. Precook octopus in red wine with a little water.
2. The octopus will exude liquid so that you are likely to end up with more cooking liquid at the end. Retain this and add water to make it up to 2-½ cups.
3. Cut the drained octopus into small pieces.
4. Heat olive oil in a large saucepan; add a chopped onion and cook gently, stirring, for 2 or 3 minutes.
5. Add garlic, tomatoes, and pepper.
6. Seasoni with salt, pepper and chilli powder to taste.
7. Cook for a few minutes longer.
8. Add the cooking liquid from the octopus and bring it to the boil.
9. Add rice (preferably a short-grain risotto rice like arborio) and bring back to the boil, then turn the heat very low and put the lid on the saucepan.
10. After 15 minutes, stir to ensure the rice is not catching on the bottom of the saucepan.
11. In 5 minutes more, taste a grain or two to make sure it is soft.
12. The rice should still be quite damp.
13. Serve.