1green lobster (about 750gm)2 tbspolive oil, plus extra for brushing100 gmunsalted butter, coarsely chopped2garlic cloves, finely chopped1lemon, finely grated rind and juice only½ tspbrown mustard seeds1 tspDijon mustard1 tbspthinly sliced chives1 tbspfinely chopped flat-leaf parsley
Halve lobster lengthways with a sharp knife, remove coral (see Masterclass link above) from head and reserve.
Preheat a grill on high. Brush lobster with olive oil and season to taste. Place on an oven tray and grill until just cooked (8-10 minutes).
Meanwhile, melt butter and olive oil in a saucepan over low heat, add garlic, lemon rind and mustard seeds and simmer until seeds begin to pop (20-30 seconds). Remove from heat, whisk in mustard, herbs, lemon juice and reserved lobster mustard. Season to taste and serve lobster halves drizzled with mustard and burnt butter.