Mix the ground chicken, beef, breadcrumbs, salt, white pepper, and chicken bouillon in a bowl.
Debone the chicken (see note). Trim all the fats from chicken skin.
Stitch up the rump & lower part of the chicken.
Add 1/3 of the ground chicken mixture to stuff the chicken skin. Add 1 egg.
Stuff another 1/3 of the chicken and add 1 egg. Add the rest of the ingredients until the sac is full (reform the chicken as it is before).
Stitch up the cervical section & other part which the skin ws broken; make sure the stuffing mixture will not leak out.
Steam the chicken for 30 min.
Preheat the oven to 350°F.