If using the long lemon grass stems, cut in half across the middle to make four short stems for a total of eight stems.
Coarsely chop chicken in a food processor and add egg white. Process to make a smooth paste. Add carrot, chile, chives, cilantro, salt and pepper and process to mix.
Place mixture in refrigerator to chill, about 15 minutes. When chilled, divide mixture into eight equal portions. Using your hands, shape the portions around the lemon grass stems. The lemon grass stem will be the "skewer" for the chicken mixture.
Preheat broiler to medium hot, brush skewers with oil and broil approximately 4-6 minutes. Turn them occasionally until golden brown and cooked thru. These skewers can also be grilled over medium hot coals.
Garnish with cilantro and slices of lemon (optional) and serve immediately.