01 - In a bowl, combine soy sauce, coconut milk, brown sugar, fish sauce, vegetable oil, minced garlic, ground coriander, turmeric, cumin, and white pepper. Add chicken strips and toss to coat thoroughly. Cover and refrigerate for at least 1 hour, or overnight for enhanced flavor.
02 - Immerse wooden skewers in water for at least 30 minutes to prevent burning during grilling.
03 - Thread the marinated chicken pieces onto skewers, spacing evenly to ensure thorough cooking.
04 - Preheat grill or grill pan over medium-high heat and lightly oil the grates to prevent sticking.
05 - Grill skewers for 3 to 4 minutes on each side until chicken is fully cooked and lightly charred.
06 - While grilling, combine peanut butter, coconut milk, soy sauce, brown sugar, lime juice, fish sauce, optional chili garlic sauce, minced garlic, and water in a small saucepan over medium-low heat. Stir continuously until smooth and warm. Adjust consistency by adding water as needed.
07 - Serve grilled chicken skewers hot with peanut sauce on the side. Garnish with chopped cilantro, lime wedges, sliced cucumber, and optional red chili.