The Big Glut Recipe – MARCH

March fillets of sole with spinach and Mornay sauce

Spinach comes into season mid-March as celeriac and leeks are on the way out, along with mussels and oysters. Garlic and wine mussels appeal, as does a creamed spinach and roast vegetable lasagne. But the sole wins here.

• 700g – 1kg/11/2 – 2lb sole fillets, skinned
• 125ml/4fl oz fish stock brought to the boil
• 125ml/4fl oz white wine brought to the boil
• 1kg/2lb spinach
• 50g/2 oz butter
• Salt and black pepper
• For the sauce:
• 25g/10z butter 4Tbsp flour
• 300ml/10fl oz fish stock
• 300ml/10fl oz milk
• 50g/2oz grated Parmesan cheese
• 50g/2oz grated Gruyere cheese
• 4Tbsp double cream
• Salt and white pepper

Put the spinach in a saucepan – don’t add any water, cook until the spinach is tender (I know, but do it and see). 


Meanwhile, melt the butter in a saucepan, stir in the flour and cook, stirring, for 1 minute. Gradually stir in the milk, then the fish stock and bring to the boil, stirring and stirring, then simmer, still stirring, until the sauce is thick and smooth. 


Now remove from the heat, add the Parmesan, Gruyere, cream and seasoning. Stir it well and keep it hot. Drain the cooked spinach, pressing hard to remove ALL excess moisture, then chop it up, add the butter and salt and pepper to taste. Mix it up and spread it over the bottom of a flame-proof serving dish. Top it with the sole fillets and pour over the sauce. Pop it under the grill until the top is lightly browned. 


Now you deserve a nice glass of white wine to go with it if no one has already poured you a glass.