01 - Rub the chicken all over with salt to exfoliate the skin, then rinse thoroughly under cold water.
02 - Fill a large stockpot with enough water to submerge the chicken. Add ginger slices and scallion pieces. Bring to a rolling boil over high heat.
03 - Carefully lower the chicken into the boiling water. Reduce heat to a gentle simmer. Cover and poach for 40–50 minutes, skimming off any foam that rises to the surface.
04 - Once cooked through, transfer the chicken to an ice bath immediately to stop the cooking process and firm up the skin. Set aside.
05 - Strain the poaching liquid through a fine-mesh sieve. Reserve the broth for cooking rice and as a serving soup base.
06 - Heat chicken fat or vegetable oil in a saucepan over medium heat. Sauté minced garlic and ginger until fragrant, about 1–2 minutes.
07 - Add rinsed jasmine rice to the pan, stirring to coat with the aromatic oil. Pour in 3 cups of reserved chicken broth and salt. Bring to a boil, then reduce heat to low, cover, and cook for 15–18 minutes until fluffy.
08 - Combine chilies, garlic, ginger, lime juice, sugar, salt, and chicken broth in a blender. Process until smooth and well combined.
09 - Whisk together light soy sauce, sesame oil, chicken broth, and sugar in a small bowl until sugar completely dissolves.
10 - Chop the cooled chicken into serving pieces using a sharp knife. For traditional presentation, chop through the bone.
11 - Arrange chicken pieces over a bed of fragrant rice. Garnish with fresh cucumber slices and cilantro sprigs. Serve with chili sauce, soy dipping sauce, and a bowl of hot chicken broth on the side.