Ingredients (Serves 4)
Preheat the oven to 200°C, 400°F, Gas 6.
Gently heat a large pan and dry fry the bacon until crisp. Add the mushrooms and 2 tbsp water then cook for reduced by half. Fold in the spinach and gently cook until wilted. Set aside and keep warm.
Meanwhile, season the cod with salt and freshly ground black pepper and drizzle with 1 tbsp olive oil.
Heat a frying pan suitable for use in the oven until hot and cook the cod, skin side down, for 3 minutes. Add the wine, cider and stock and bring to the boil. Transfer to the oven and cook for 8 minutes, then remove the cod from the cooking juices and keep warm, reserving the juices.
Add the mustard to the pan juices and bring to the boil.
Bubble rapidly until reduced by half, then gradually whisk in the butter and remaining 2 tbsp olive oil until thickened. Check the seasoning and adjust if necessary.
Divide the spinach mixture between 4 warm plates and scatter over the Camembert cubes. Top with a cod fillet and drizzle the cider sauce around. Serve immediately.