In a large mixing bowl, whisk together the sugar, soy sauce, minced garlic, grated ginger, and eggs until fully combined. Add the mochiko flour and cornstarch and whisk until a thick, smooth batter forms with no dry pockets.
¼ cup (50 g) granulated sugar, ¼ cup (60 ml) low sodium soy sauce, 2 cloves garlic, 1 tbsp (6 g) fresh ginger, 2 large eggs, ½ cup (80 g) mochiko flour, ½ cup (60 g) cornstarch
Add the chicken pieces to the batter and toss thoroughly to coat each piece evenly. Cover the bowl tightly with plastic wrap and refrigerate for 4 hours to allow the batter to adhere properly and flavor the chicken.
1½ lbs (680 g) boneless skinless chicken thighs
While the chicken marinates, prepare the mango aioli. Add the mayonnaise, chopped mango, garlic, lime juice, sriracha, and sugar to a blender or food processor. Blend until completely smooth. Transfer to an airtight container and refrigerate until ready to serve.
½ cup (120g) mayonnaise, 1 fresh mango, 1 clove garlic, 1 tbsp (15 ml) fresh lime juice, 1 tbsp (15 ml) Sriracha, 1 tbsp (12 g) granulated sugar
Pour the canola oil into a heavy-bottomed pot or deep fryer and heat to 350°F (177°C). Use a thermometer to monitor the temperature, as maintaining proper heat is critical for setting the batter and preventing oil absorption.
4 cups (960 ml) canola oil
Working in batches, carefully lower 5 to 6 pieces of battered chicken into the hot oil, allowing excess batter to drip off before frying. Do not overcrowd the pot. Fry for 4 to 5 minutes, turning occasionally, until the exterior is golden brown and the internal temperature reaches 165°F (74°C).
Remove the chicken with a slotted spoon and place on a wire rack set over a baking sheet to drain excess oil. Allow the oil to return to 350°F (177°C) before frying additional batches.
Arrange the fried chicken on a serving platter. Drizzle with mango aioli and finish with sliced green onions and furikake. Serve immediately while hot and crisp.
green onions, furikake