These fried sushi rolls stay intact because you use a firm cooked filling, chill each roll before coating, and fry briefly at 350°F (175°C). This recipe makes two rolls, or about 16 pieces, with crisp panko outside, seasoned rice, cooked salmon, and cucumber.
Do not deep-fry a loose, warm roll. Roll it tightly, refrigerate it until firm, then coat every surface before it reaches the oil.
Roll Ingredients for Two Fried Sushi Rolls
- 2 cups cooked sushi rice, cooled to room temperature
- 2 nori sheets
- 6 ounces cooked salmon, cooled and flaked into firm pieces
- 1/2 English cucumber, cut into thin sticks
- 1 tablespoon rice vinegar
- 1 teaspoon sugar
- 1/2 teaspoon fine salt, divided
- 1/2 cup all-purpose flour
- 1 large egg
- 1 tablespoon cold water
- 1 cup panko breadcrumbs
- 6 cups neutral oil, such as canola or peanut oil, for frying
Stir the rice vinegar, sugar, and 1/4 teaspoon salt together. Fold the mixture into the cooled rice without mashing it. Keep the salmon fairly chunky so the filling remains firm. Prepare a shallow dish of flour, a second dish with the egg beaten with water, and a third dish with panko mixed with the remaining 1/4 teaspoon salt.
Assemble and Chill the Roll Before Frying
- Place one nori sheet, shiny side down, on a bamboo mat covered with plastic wrap. Wet your hands and spread half the rice over the nori, leaving a 1-inch strip uncovered along the far edge.
- Arrange half the salmon and cucumber in a straight line across the lower third of the rice. Keep the filling compact; excess filling makes the roll split during coating and frying.
- Lift the edge of the mat closest to you and roll the nori over the filling. Press forward firmly to compress the roll, then continue rolling until the uncovered nori edge seals the cylinder. Repeat with the second sheet.
- Wrap both rolls tightly in plastic wrap and refrigerate for at least 30 minutes, or until the nori and rice feel firm. For an especially soft rice mixture, chill for 45 minutes.
Chilling is essential: it gives the rice time to set and makes the roll easier to handle. If a roll feels loose, press it gently in the mat again before coating. A warm roll can unwind, shed rice, or absorb oil before the crust turns crisp.
Coat and Fry a Deep-Fried Sushi Roll
- Unwrap the chilled rolls. Roll each one in flour, turning it to cover the ends. Dip it into the egg wash, letting excess drip off, then roll it in panko. Press the crumbs gently onto the ends and seams.
- Set the coated rolls on a rack for 5 minutes. This short rest helps the coating adhere instead of separating in the oil.
- Pour the oil into a heavy pot to a depth of about 2 inches. Heat it to 350°F (175°C), checking with a thermometer. The workable range is 345–355°F (174–179°C).
- Lower one roll into the oil with tongs. Fry for 2–3 minutes, turning it once or twice, until the panko is evenly golden and the surface feels crisp. Fry the second roll separately if the pot is small; crowding causes the temperature to drop.
- Transfer the fried roll to a wire rack. Let it drain for 2 minutes before slicing. Return the oil to 350°F (175°C) before frying the second roll.
If the coating browns in under 2 minutes, the oil is too hot. If it remains pale and the roll feels heavy or greasy after 3 minutes, the oil is too cool. Keep the frying time short because the filling is already cooked.
Slice the Fried Sushi Roll and Serve
Use a very sharp knife, preferably with a thin or serrated edge. Wipe the blade with a damp towel between cuts, then slice each roll into eight equal pieces. Saw gently through the crust rather than pressing straight down, which can crush the rice and push out the filling.
Serve the fried sushi roll immediately with soy sauce, spicy mayonnaise, pickled ginger, or wasabi. The coating is crispest during the first few minutes, while the chilled salmon and cucumber keep the center firm.