Avocado poppers with coriander-lime mayonnaise

For the avocado poppers:

large avocado (try to choose one that is slightly on the firm side if possible)

plain flour

egg

milk

~100g breadcrumbs (I tried homemade and shop-bought, and both worked well)

For the coriander-lime mayonnaise:

fresh coriander (including stalks)

freshly squeezed lime juice

(heaped) mayonnaise

Black pepper

Salt