Crab mayonnaise with Melba toast & herb salad - Good Food Middle East

Ingredients

• 1 egg yolk
• 1 tbsp Dijon mustard
• 200ml olive oil (not extra virgin)
• zest and juice 1 lemon
• 300g freshly picked white crabmeat
• 2 thick slices white bread
• large handful flat-leaf parsley leaves
• large handful tarragon sprigs
• large handful chervil
• 1 shallot, sliced into thin rings
• 1 tbsp small caper in brine, drained
• 1 tbsp extra-virgin olive oil, plus extra to serve
• 1 tsp red wine vinegar, plus extra to serve