Heat your grill pan or plate on high.
Halve your avocados, remove the seeds and brush with lime juice to stop browning.
Brush the cut surface with a touch of olive oil and place face down onto the hot grill pan.
Do not move them once placed. Cook for 5 minutes then remove.
While the avocados char, make the dressing.
Place all of the ingredients into a blender or food processor and blitz until smooth. Pour into a jar for storing.
Place the avocado face up on your plate and drizzle with the dressing to serve. Add cracked pepper and chili flakes, if desired.
The avocados should be eaten straight away, but the remaining dressing can be stored in the refrigerator for up to 1 week.