Cook the rice according to package directions.
Preheat the oven to 400 degrees F. Grease a large, non-stick baking sheet.
Add the chicken to a large bowl and season well with salt and pepper. Sprinkle with half the cornstarch and toss, sprinkle with the remaining half and toss again.
Dump the chicken out onto the baking sheet and spread apart so the pieces aren't touching. Bake 8 - 10 minutes or until cooked through.
Meanwhile whisk the broth, orange juice, vinegar, soy sauce, brown sugar, orange zest, garlic, ginger and cayenne together.
Pour it into an 8-inch frying pan set over medium-high heat and bring to a simmer.
Whisk the cornstarch with 2 tablespoons water until dissolved. Whisk it into the simmering sauce and cook 2 to 3 minutes until thickened. Turn the heat down to low.
Scrape the chicken into the sauce and gently toss until all the pieces are well coated.
Serve over rice with a sprinkle of almonds.