Rinse the glutinous rice and soak in water for at least 1 hour.
Clean the chicken thoroughly, removing any excess fat.
Stuff the chicken cavity with the soaked rice, garlic, ginseng (if using), and jujubes.
Place the stuffed chicken in a large pot or pressure cooker.
Add water and chicken bouillon powder to the pot.
Bring to a boil, then reduce heat and simmer for at least 60 minutes, or until the chicken is tender. If using a pressure cooker, cook on high pressure for 20-25 minutes, then allow the pressure to release naturally.
Season with salt and pepper to taste.
Serve hot, garnished with sesame seeds (optional).