Cut chicken breast fillet into bite-sized cubes, transfer them into a bowl. Set aside.
Grind garlic, shallots, and mix herbs until smooth. Transfer it into a bowl of chicken cubes and mix the spice until well combine. Add salt, pepper, seasoning, tamarind, and sweet soy sauce to the chicken mixture, mix well. Let it marinate for at least 1 hour.
Skewer the marinated chicken, then grill until cooked. Occasionally brush the surface of the satay with the marinade water until the surface turns brown and cooked. Serve with lime juice and peanut sauce. Enjoy!