In a bowl, combine minced garlic, ginger, soy sauce, fish sauce, brown sugar, turmeric, coriander, cumin, and black pepper.
Add the chicken cubes and toss to coat. Cover and marinate in the refrigerator for at least 1 hour, or overnight for best results.
In a blender or food processor, combine roasted peanuts, coconut milk, soy sauce, brown sugar, minced garlic, tamarind paste, and red chilies. Blend until smooth.
Add water gradually to achieve desired consistency. Season with salt to taste. Set aside.
Thread the marinated chicken cubes onto the soaked skewers.
Preheat a grill or grill pan over medium-high heat. Brush the grill with vegetable oil to prevent sticking.
Grill the chicken skewers for about 3-4 minutes per side, or until fully cooked and slightly charred.
Enjoy your meal!