Step 1

To prepare the chicken, in a large bowl, combine the ginger, garlic, sugar, oil, turmeric, cumin, 1 1/2 teaspoons salt and ½ cup water. Stir until the sugar dissolves, then stir in the chicken. Cover and refrigerate for 2 to 3 hours.

Step 2

To make the sauce, in a medium bowl, whisk the boiling water and peanut butter until smooth. Whisk in the soy sauce, vinegar and sugar, then set aside. In a small skillet over medium, heat the oil, ginger and garlic. Cook, stirring constantly, until fragrant, about 1 minute. Stir in the chili-garlic sauce and turmeric, then cook until fragrant, about 30 seconds. Whisk the garlic mixture into the soy mixture. Reserve ¼ cup for basting the chicken. Cover and refrigerate the remaining sauce for serving.

Step 3

About 30 minutes before skewering and cooking the chicken, remove the sauce from the refrigerator. Stir in the chopped peanuts. Heat the broiler with a rack about 4 inches from the element. Line a rimmed baking sheet with foil and spread 1 cup salt in an even layer over it. Set a wire rack in the baking sheet over the salt and mist with cooking spray.

Step 4

Drain the chicken in a colander. Thread 2 or 3 pieces of chicken onto each of eight 8-inch metal skewers, evenly dividing the meat and pushing the pieces together, but not tightly packing them. Evenly space the skewers on the wire rack.

Step 5

Broil the chicken until beginning to brown, 5 to 7 minutes. Flip the skewers and continue to broil until the second sides begin to brown, another 4 to 6 minutes. Remove from the oven and brush each skewer with 1 to 2 tablespoons of the reserved sauce. Continue to broil until well-charred, 2 to 4 minutes. Remove from the oven once again, flip the skewers and brush with another 1 to 2 tablespoons of the reserved sauce. Continue to broil until the second sides begin to char and the chicken is cooked through, another 2 to 4 minutes. Serve with the dipping sauce.