1. Stir the cornstarch and soy sauce together in a saucepan. Add the next 5 ingredients and cook over medium-high heat until thick and bubbling, about 2 minutes. Remove from heat. Stir in the orange juice and brandy.
2. Place the chicken pieces, skin side down, in a 13 x 9 x 2-inch glass baking dish. Pour the sauce on top.
3. Bake at 375 degrees F. for 30 minutes. Turn chicken pieces; baste with sauce and continue baking 30 minutes more.