Method

• Heat the oven to 170°C
• Peel the marrow, halve and scoop out the seeds, then cut into 2
• 5cm chunks
• Use about a third of the butter to grease an ovenproof dish that will take the marrow in a tight single layer
• Spread out the marrow chunks in the dish, sprinkle with oregano, coriander, sugar, salt and pepper and then dot with the remaining butter
• Cover the dish with foil, and bake for 35 minutes
• Remove foil, turn the marrow in its own juices and return to the oven for a final 10-15 minutes until just cooked