BBC Food - Recipes - Fruits de mer with homemade rye bread and whipped butter

Ingredients

• 500g/1lb 2oz wholegrain rye flour , plus extra for dusting
• 25g/1oz dark brown muscovado sugar
• 10g salt
• 10g fast-action dried yeast
• 200g/7oz unsalted butter , softened
• 12 langoustines
• 12 razor clams , scrubbed
• 400g/14oz clams in their shells, scrubbed
• 1 x 1kg/2lb 4oz cooked lobster
• 1 medium-sized cooked brown crab
• 8 oysters , shucked
• 16 cooked shrimps in their shells
• 200g/7oz cooked brown shrimps
• 3 free-range egg yolks
• 1 tbsp Dijon mustard
• 2 tbsp cider vinegar
• 1 unwaxed lemon , juice and finely grated zest
• 300ml/10½fl oz rapeseed oil
• salt and freshly ground black pepper