- 500g Salmon Trout fillet
- 600g baby new potatoes, cutinto 2-3cm chunks
- Olive oil for drizzling
- Grated zest and juice 1 lemon
- 25g butter, cubed
- Glug white vermouth or dry white wine
For the mushroom hollandaise
- 3 tbsp white wine vinegar
- ½ shallot, finely chopped
- 6 black peppercorns
- 1 bay leaf
- 2 free-range egg yolks
- 110g diced unsalted butter, softened, plus an extra knob for frying the mushrooms
- 75g baby chestnut mushrooms, roughly chopped
- 1 tbsp fresh flatleaf parsley, chopped, plus extra to garnish
- 1 tbsp fresh tarragon, chopped, plus extra to garnish
- Salad or steamed veg to serve