Step 1

Place chicken, buttermilk and spices in a non-reactive bowl, cover and chill for 4 hours or overnight to marinate.

Step 2

Meanwhile, to make green goddess dressing, place herbs, garlic, lemon juice and mayonnaise in a food processor and whiz until smooth. Cover and set aside until needed.

Step 3

Remove chicken from marinade, allowing any excess to drip off. Heat a chargrill pan or barbecue to medium-high heat. Brush with oil. Cook chicken, turning occasionally, for 7 minutes or until cooked through. Rest for 5 minutes, then slice.

Step 4

Spread tortillas with green goddess dressing. Layer with chicken, cabbage, onion, chilli, avocado and coriander, and serve immediately.