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 scallions, then bring to a rolling boil.
03 - Carefully lower the chicken into the boiling water. Reduce heat to a gentle simmer, cover, and poach for 40 to 50 minutes, skimming off any foam that rises to the surface.
04 - Once cooked through, transfer the chicken immediately to an ice bath to stop the cooking process and firm up the skin. Set aside to cool completely.
05 - Strain the poaching liquid through a fine-mesh sieve, reserving the clear broth for cooking rice and serving as soup.
06 - Heat chicken fat or vegetable oil in a saucepan over medium heat. Sauté minced garlic and ginger until fragrant, about 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 to 18 minutes until fluffy.
08 - Combine chilies, garlic, ginger, lime juice, sugar, salt, and chicken broth in a blender. Process until smooth and adjust seasoning to taste.
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 bite-sized serving pieces, using a sharp knife to cut through bones and joints.
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.