Take your sushi-making skills to the next level with this Rainbow sushi roll recipe. An appetizing sushi roll that marries the complex flavors of yellowtail jack fish, yellowfin tuna and salmon, with sous-vide cooked ‘butterfly’ prawns and avocado. This colorful, elegant sushi roll will surely delight your taste buds!
Finely chop 3 crab sticks (surimi). Put the chopped sticks in a mixing bowl. Add masago roe and 2 or 3 tablespoons of mayonnaise. Mix the ingredients using a wooden spoon or spatula. Make sure the sea food is adequately coated with mayonnaise. Cover and refrigerate until needed.
The prawns are cooked ‘sous vide’ (French for ‘under vacuum’). This is a method of cooking in which the food is vacuum sealed in an airtight plastic bag and cooked in water at a constant, relatively low temperature. This is a great way to cook the food evenly, ensuring that the inside is properly cooked and retains moisture, without overcooking the outside. As a result the food tastes even better and gets a better structure.
To make sure the temperature stays the same, it’s best to use a dedicated sous vide cooker. Cooking sous vide by hand is not really an option. Unles you’re willing to sit next to the stove while continously measuring the water temperature and adjusting the heat accordingly.
If you don’t have a sous vide cooker, you can cook the prawns in the traditional manner. But I think it’s worth the purchase. Sous vide cooking is the difference between good and really great tastes!
Step 3: sous vide cooking the prawns
Preheat the sous vide cooker to 58º Celsius/ 136º Fahrenheit.
Put 5 or 6 large prawns in a plastic sous vide cooking bag. Remove the air from the bag using a table-top vacuum sealer and seal the bag. Gently lower the bag into the sous vide cooker, then cook for 10 to 12 minutes.
Remove the cooking bag from the sous vide cooker using a pair of metal tongs. Cut the bag open and gently take out the prawns. Let them cool for five minutes.
Next, remove the head from each prawn by simply snapping it back, away from the body. Also remove the scales and tail. Cut a little excess from both ends of the prawn with a knife, creating a straight edge at each end.
Hold the prawn between your thumb and forefinger, then use the tip of your blade to make a vertical incision along the length of the prawn. Take care not to cut all the way through the flesh. You should hear a pop once the blade hits the inner cavity. Remove the black intestinal tract using your fingers or a pair of tweezers.
Make sure to clean the cutting board with hot water each time you use it to prepare a new variety of fish or seafood.
Put the salmon on the cutting board and make a 45 degree, diagonal cut across the salmon filet, starting at the center. Position the knife at the same 45 degrees angle and make 0,5 cm thick slices.
Step 5: preparing the yellowtail and yellowfin
Position your knife at a twenty to thirty degree angle at one end of the yellowtail filet. Make slices of 0.5 cm thick by dragging the heel of the knife through the flesh in one single fluid motion. Do the same with the yellowfin filet.
Note: yellowtail is not a tuna but a species of jack fish. It has rich, mildly oily flesh and tastes quite different from tuna.
Put a bamboo rolling mat inside a a zip-lock bag. Place a single sheet of nori shiny-side down on the rolling mat. Moisten the tips of your fingers with a little water and put the cooked white sushi rice onto the sheet.
Spread the rice evenly over the entire nori sheet with your fingers. ‘Fluff’the rice while you’re spreading it.
Flip the nori sheet over and add the filling. Start with the crab mix. Use a fork to create a thick line of crab mix along the length of the nori sheet closest to you. For ease of rolling, leave approximately half an inch of space open from the edge of the sheet. Put two strips of cucumber above the crab mix line.
Raise the near edge of the rolling mat with your thumbs, while holding the cucumber in place with your index fingers. Roll the mat over the contents. Pause a few times to firm up the roll by applying pressure along the length of the mat. Roll the mat a bit further and again firm up the roll. Then unroll the mat and set the sushi roll aside.
Layer the slices of fish across the length of the roll. Alternate with avocado slice. Start with a slice of yellowtail and work your way to the center. Add a piece of prawn. Repeat the sequence of fish until you come to the end of the roll.
Cover the entire sushi roll with clingfilm. Use the rolling mat to press the clingfilm against the sushi roll, packing the contents tightly together.
For a neater finish, remove the clingfilm and cut of both sides of the roll with the tip of your knife. Cover the roll once more with clingfilm, and again use the mat to firm up the contents.
Hold your knife under the cold tap for a few seconds. This prevent rice from sticking to the blade. Cut the roll. Start with the heel of your knife and gently cut through the roll in one fluid motion.
To create slices of equal size, cut the sushi roll in half, then into quarters, and then into eighths. You may need to moisten the blade again if it begins to drag.
The Rainbow sushi roll is quite an elaborate creation.Therefore it deserves a little extra effort when it comes to the presentation. Serve the sushi on a traditional wooden sushi presentation board. This leaves you plenty of space for the slices and a decorative side garnish.
For this sushi roll, Chef Devaux suggests creating a backdrop of fanned cucumber and carrot spirals in the near corner. Neatly arrange your slices in a diagonal fashion on the board. Finish with a ramekin of soy sauce in front of the slices, along with a teaspoon of freshly grated wasabi.
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