Thaw 8 wonton wrappers, if frozen. Cut wrappers in half diagonally; brush tops of wrappers evenly with 2 teaspoons dark sesame oil. Combine 1/4 teaspoon Chinese five-spice powder and 1/8 teaspoon salt in a small bowl. Sprinkle wrappers evenly with five-spice powder mixture. Bake at 450º for 3 minutes or just until crisp.