Heat cooking oil i a deep pan.
in medium heat,saute' onion until transparent and then add in the ginger.
Let the ginger sip through and cook for 2 minutes then add the bouillon.
Crush the bouillon and mix with ginger and onion.
Add the chicken. Let the spices absorb by cooking for 3 more minutes then add 1 cup of water.
Season with fish sauce.
Cover pot and cook for another 3 minutes.
Add water and change heat to high. Cover pot and cook until chicken is soft.
Cook another 3 minutes then season with pepper or salt if needed. For me, I just used fish sauce.
Finally add the pepper leaves and turn off fire