With a pestle and mortar, pound and grind coriander roots, garlic, white peppercorns, 1 tsp light soy sauce, 2 tbsp oyster sauce and 1½ tbsp coconut cream until well combined.
In a bowl, mix chicken pieces with marinade until evenly coated. Let it marinate for 30 min.
In a small pot on high heat, mix palm sugar, 1 tbsp sweet soy sauce, 1 tbsp light soy sauce, 1 tbsp sriracha hot sauce and 1 tbsp tamarind juice until sugar dissolves and sauce thickens. Set aside to cool and transfer to sauce dish.
Twist the middle part of pandan leaf (with both ends sticking outwards).
Take a piece of marinated chicken and wrap it in the leaf. Cut off any excess leaf. Repeat for all.
In a pan or pot on medium-high heat, heat up enough oil for deep frying. When oil is hot enough, about 180C, deep-fry wrapped chicken for 3-4 min until chicken is golden brown.
Remove deep-fried wrapped chicken from hot oil and place on a paper towel-lined plate to drain excess oil.
Place Thai pandan chicken on serving plate. Sprinkle sesame seeds on the dipping sauce. Serve hot with dipping sauce on the side.