Make the marinade by placing the lemongrass, shallots, garlic, chiles,
galangal or ginger, turmeric, coriander, cumin, soy sauce, fish sauce, brown
sugar, and oil in a food processor or chopper. Process well.
Taste-test the marinade. You should taste sweet, spicy, and salty. In order for the satay to taste its best, the strongest flavors should be sweet and salty. Add more sugar or more fish sauce (in place of salt) to adjust the taste. You also can add more chile if you want it spicier.
Cut chicken into small pieces or strips—thinner is better.
Place in a bowl and pour the marinade over. Stir well to combine. Allow at
least 2 hours for marinating, or longer (up to 24 hours).
When ready to cook, thread meat onto the skewers. Fill up to 3/4 of the
skewer, leaving the lower half empty so that the person grilling has a
"handle" to easily turn the satay.
Grill the satay, basting the first time you turn it with a little of the
leftover marinade from the bowl. Depending on how thin your meat is, the satay
should be done in 10 to 20 minutes.