50g/2oz butter, softened
Small bunch fresh basil, finely chopped
300g/12oz Black Pudding
For the beurre blanc:
2 shallots, finely diced
3 tbsp. white wine vinegar
300ml/10.5fl oz butter, cubed
1 lemon, quartered
Preheat the oven to 180°C/350°F/Gas Mark 4. Take two fillets and place, skin side down, on an oiled oven-proof dish or tray. Blend the butter and basil together and dot on top of the trout flesh; spread gently.
Crumble the black pudding into the breadcrumbs (use a food processor if you wish) and scatter over the buttered fillets. Place the other fillets on top, flesh side up and bake for 15 minutes.
While the fish is cooking, make your beurre blanc. Combine the shallots and white wine vinegar in a pot and bring to the boil over a medium heat. Simmer for three minutes until reduced by a third. Next, add the cream and slowly bring to the boil. Take off the heat and add a third of the butter while whisking constantly. Continue to add the butter, a small cube at a time, until the sauce thickens (Tip: always stand over the sauce as it can separate).
Serve immediately with the sauce and fresh lemon.