Trout ballottine with crayfish and girolles

Preparation time overnight Cooking time 30 mins to 1 hour Serves Serves 4   By Matt Tebbutt From Saturday Kitchen 2 gelatine leaves bunch chervil, finely chopped bunch dill, finely chopped bunch chives, finely chopped bunch tarragon, finely chopped small handful flatleaf parsley, finely …