Dice the meat. Mix all the ingredients for the tartare sauce and use some of the mix to season the meat.
Clean the langoustines, place them in cling film and freeze. Warm the vegetables and season with olive oil and lime zest. Mix all the ingredients for the cream with the hand blender. Season to taste and set aside to cool.
Fill a ring with the tartare and press down firmly. Place it in the middles of a plate and lay the langoustine carpaccio on top. Decorate with a caviar quenelle and dots of cream. Garnish with borage cress.
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