1) In a large heavy-bottomed pot, pour in enough oil to fill the pot about a third of the way. Heat over medium heat until a deep-frying thermometer inserted into the oil reaches 180C.
2) Line a sheet tray with a wire cooling rack.
3) Slice chicken into 4-cm pieces. In a large bowl, whisk together eggs, cayenne, salt and black pepper to taste. In a paper bag, shake together salt, pepper, flour and cornstarch.
4) Dip the chicken in batches, first in egg mixture, then in the flour mixture and shake to coat. Set on a wire rack and let sit 10 minutes.
5) While chicken is resting, prepare sauce. In a large straight sided saute pan combine orange zest, orange juice, brown sugar, butter, hot pepper flakes and Worcestershire sauce. Stir, bring to a boil, then reduce heat and simmer until thickened, 5 to 8 minutes.
6) Carefully place chicken in hot oil and fry until golden and crispy, 5 to 8 minutes. Transfer to the saute pan with the sauce and toss until evenly coated. Remove to a serving platter and serve on stormy rice.
For the stormy rice:
1) In a medium saucepan, heat oil over medium-high heat. Add garlic and rice and saute 4 minutes, stirring, so that the rice toasts and the garlic cooks. Add the chicken broth to the rice mixture, bring to a boil, then reduce heat to a simmer. Cover and cook for 15 minutes.
2) Remove from heat and let sit covered another 5 minutes. Stir in the peanuts, scallions, and salt and pepper, to taste. Rice can be made 1 day ahead, then warmed and combined with other ingredients before serving.