1. Put the washed coriander (including stems and roots) into the blender/food processor with garlic, black pepper, soy sauce, fish sauce and oil, and blend until smooth.
2. Place chicken in a large bowl and pour over the marinade to coat all over. Cover with plastic wrap and marinate for at least a few hours or overnight in the fridge.
3. Dipping sauce: Combined everything (except coriander) and stir until honey dissolves. To get rid of the rawnesss of the garlic, cook on stove for a few minutes until mixture thickens, then stir in the coriander when it has cooled down. Taste for seasoning and set aside until ready for use.
4. Preheat oven to 200C, place chicken drumsticks on baking tray and cook for about 20-30 minutes until skin is nicely brown and chicken is cooked through. Serve warm with dipping sauce.