In a small skillet, heat oil. Add chicken; cook 4-5 minutes, stirring occasionally, until no longer pink. Stir in water chestnuts, carrot, cilantro, garlic, apricot preserves, soy sauce, ginger & red pepper flakes. Divide mixture evenly between the 12 rectangles; placing some filling on long side of each rectangle to within 1/4″ of short ends.