A luxe prawn tartare of different textures, with richness from brandy-infused sauce Americaine and a dusting of prawn dust, and savoury crunch from nori crisps that serve as crackers.
6 Skull Island Tiger Prawns, peeled and deveined, heads and shells reserved
40g table salt
120g caster sugar
Finely grated zest of ½ lemon
2 shallots, finely diced
Fennel fronds, to serve
Nori crisps
19g plain flour
8g rice flour
10g cornflour
14g potato starch
1g baking soda
75ml chilled soda water
100ml canola oil
2 nori sheets, each cut into 9 pieces
Sauce Americaine
½ onion, diced
3 garlic cloves, diced
60g tomato paste
1 tbsp brandy
30ml white wine
240ml fish stock
60ml thickened cream
0.5g agar agar (from gourmet grocers or online)
To make a prawn dust, preheat the oven to 190°C, clean the prawn heads, place on an oven tray and roast for 15 minutes until fragrant. Reduce the heat to 170°C and roast for a further 15 minutes or until dried out. Remove from oven, allow to cool, then blitz to a powder in a food processor.
For the nori crackers, combine the flour, rice flour, cornflour and potato starch with the baking soda in a large bowl. Slowly whisk in the soda water to make a batter. Heat the oil in a small saucepan, and working with one nori square at a time, dip it into the batter, then fry until crisp. Drain on paper towels and sprinkle with sea salt. Set aside.
To cure the prawns, combine the salt, sugar and lemon zest in a bowl. Finely dice the prawn meat, then toss it in the cure to coat. Refrigerate for 40 minutes to cure. Once cured, rinse and dry on paper towels.
Meanwhile, for the sauce Americaine, sauté the onion and garlic in a saucepan over medium-high heat. Add the prawns shells, stirring until they change colour, then stir in the tomato paste, cooking until nicely caramelised.
Add the brandy and white wine, scraping the pan to pick up all the flavours, then add half the fish stock. Let it reduce for 3-4 minutes, then add the cream and season to taste. Cook for another 2-3 minutes, then adjust the consistency with extra fish stock if you think it needs it.
Strain through a fine sieve into a clean saucepan, bring to the boil, then whisk in the agar agar and bring to the boil again. Pour into a syphon if you have one, and charge it twice. Alternatively, you can serve the sauce as is.
Stir the shallots through the cured prawn meat, season to taste and serve with the sauce Americaine, topped with fennel fronds and prawn dust, with nori crisps for scooping.