Blue Lobster Thinly Sliced with Berries and Red Fruits, Celery and Green Peppercorns, in Jus Corse

Name: Blue Lobster Thinly Sliced with Berries and Red Fruits, Celery and Green Peppercorns, in Jus Corse
Yield: Serves 4
Ingredients: 2 Breton lobsters; Young celery leaves, to taste; 100 g celery purée in a very dry ball; 50 g milk; 300 g lobster stock; Seasoning garnish, to taste; 25 g wild strawberries; 25 g raspberries; 50 g cream; 25 g bilberries; 1.5 g blanched green peppercorns; Table salt to taste; 500 g blackcurrants; 2.5 g blanched green peppercorns; 15 g lightly salted butter; 50 g sugar; 100 g white stock; 1 tbsp grapeseed oil; ½ white celery stalk base