INGREDIENTS
1
small handful Chervil optional, fresh
4 handfuls
French beans stalk ends removed
1/2 clove
Garlic
1
Shallot, medium
1 tbsp
Capers optional
2
heaped tsp French mustard
1
Black pepper, freshly ground
1
Sea salt
4 tbsp
Olive oil, extra virgin
2 tbsp
White wine vinegar, good-quality