Watercress Pancakes Filled with Saffron Crab

• 1 small onion, chopped
• a little unsalted butter
• 150 ml (

Sweat the onion in the butter. When soft, add the cream and milk and bring to the boil. Add the watercress and cook for a further 2 minutes. Blend in a liquidizer and then pass through a sieve.

Make the pancake batter by working all the ingredients in a liquidizer for a few minutes until well blended. Combine the pancake mixture with the watercress purée, put to one side and rest the ba