Jerusalem Artichoke Roulade with Salmon Trout Tartare

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Ingredients for 10 portions
  • For the sponge
  • 4 Egg white(s)
  • 1 pinch(es) Salt
  • 4 Egg yolk(s)
  • 60 g Flour, plain
  • 30 g Flat-leaf parsley, finely chopped
  • For the filling
  • 125 g QimiQ Whip Pastry Cream, chilled
  • 200 g QimiQ Classic, unchilled
  • 450 g Jerusalem artichoke, peeled
  • 60 g Onion(s), peeled
  • 60 g Butter
  • 125 ml White wine
  • 500 ml Clear vegetable stock
  • 0.5 tsp Salt
  • 60 g Cream cheese
  • 60 g Cream 30 % fat
  • 60 ml Noilly Prat/Vermouth dry
  • 2 g Orange zest
  • 50 ml Orange juice
  • 10 ml Lemon juice
  • 1 pinch(es) Ground nutmeg, ground
  • For the tartare
  • 200 g QimiQ Classic, unchilled
  • 80 g Sour cream 15 % fat
  • 800 g Salmon trout fillet(s), skinned
  • 120 g Red onion(s), finely diced
  • 20 g Capers, finely chopped
  • 80 g Pickled salt gherkins, finely chopped
  • 4 g Salt
  • 5 ml Lemon juice
Method
1.
For the sponge: whisk the egg whites with the salt until stiff. Carefully add the egg yolk and parsley and fold in the flour.
2.
Pour the mixture onto a baking sheet lined with baking paper. Bake in a hot oven at 190 °C for approx. 10 minutes. Remove the sponge from the tin onto a clean tea towel, peel off the baking paper and allow to cool.
3.
For the filling: sauté the Jerusalem artichoke and onions in butter.
4.
Douse with the white wine and reduce. Add the vegetable stock (or water) and season with salt. Cook until the vegetables are soft and reduce until the liquid has almost completely evaporated.
5.
Blend until smooth and allow the mixture to cool.
6.
Lightly whip the cold QimiQ Whip until completely smooth, ensuring that the entire mixture is incorporated (especially from bottom and sides of bowl).
7.
Add the unchilled QimiQ Classic and whisk it smooth. Add the smooth QimiQ Classic, 300 g of the Jerusalem artichoke puree and the remaining ingredients to the QimiQ Whip and continue to whip until the required volume has been achieved.
8.
Spread the filling onto the sponge and roll into a roulade. Allow to chill well.
9.
For the tartare: whisk the unchilled QimiQ Classic smooth. Add the remaining ingredients and mix well. Serve with the roulade.