Sous vide fish and chickpea chips

Ingredients

1 Ltr	Milk
1 tsp	Parmesan cheese
1 splash	Extra virgin olive oil
15 g	Unsalted butter, diced
5 g	Celery seeds
15 g	Sea salt
250 g	Besan (chickpea flour)
20 g	Semolina flour
1 ⅕ kgs	Hapuka fillets, cut into six pieces (Main)
50 g	Black olives, dehydrated, chopped in a food processor
40 g	Sesame seeds, lightly toasted
50 g	Chives, finely sliced
1	Lemon, zested

Directions

1. In a saucepan, bring the milk, parmesan oil, butter, smoked salt and celery seeds to the boil. Gradually whisk in the chickpea flour, then pour into a greaseproof paper-lined Swiss roll pan. Refrigerate until set, then turn out on to a chopping board and cut into even-sized fat chips. Coat in semolina flour. Deep-fry in 175C oil until golden.
2. Meanwhile, bring a roasting tray of water to 60C. Place one sealable bag inside another, and place seasoned fish portions inside. Lower the bags slowly into the water and, as the water comes up to the closure, seal off the bags and cook the fish, gently stirring the water from time to time, for 14 minutes. Mix olives, sesame seeds, chives and lemon zest on a dinner plate. Remove the fish from the bags and dip one side into the mixture.
3. Serve with chickpea chips.