Perfect buttered cabbage

• 1 cabbage (any size)
• 50 g (2 oz) butter
• salt

Bring a large pan of well-salted water to the boil. Cut the cabbage in quarters, wash well, and remove the stems with a sharp knife. Plunge the cabbage into the boiling water, cover the pan only until the water returns to the boil which must be as fast as possible.

Now remove the lid and let the cabbage cook gently until just tender and still a vibrant green.

Drain in a l