Gently cook onion and chopped chorizo, until the onion begins to soften and colour.
Add in the chopped pepper, crushed garlic clove and paprika.
Add in the rice, tomatoes and stock. Bring to the boil, reduce to a simmer and cook for 10 minutes with the lid on. Check that the rice is cooked, if not, leave for another few minutes. Turn off the heat.
Chop the apple into small chunks (your preference if you peel first or not). Mix the apple into the rice mixture, put the pan lid back on and allow to stand for 3 to 5 minutes. Serve.