20 asparagus spears, peeled and woody ends removed
20 small morel mushrooms, trimmed
2 tbsp roughly chopped fresh flatleaf parsley
15g/陆oz banana shallots, peeled and finely chopped
20驳/戮辞锄 Dijon mustard
20驳/戮辞锄 English mustard
salt and freshly ground black pepper
2 tbsp olive oil
10驳/鈪搊锄 salt
250ml/9fl oz vegetable oil
5g/录oz cracked white peppercorns
100ml/3陆fl oz white wine vinegar
50g/1戮oz unsalted butter
3 duck eggs
100ml/3陆fl oz Madeira