Chilli crème fraîche
Combine the crème fraîche and remaining ingredients with a little salt and mix well, then refrigerate.
Avocado fries
Empty the flour into a shallow dish. Beat the egg in a deep bowl and place the breadcrumbs in a shallow bowl. Salt the avocado slices, turn in the flour in batches, shaking off the excess flour, then coat in the egg then the breadcrumbs.
Baking
Fill a pot to 1/3 with oil, heat it, then reduce the heat. Deep-fry the avocado in batches for around 4 mins. each until golden brown, then remove, allow to drain on kitchen paper, serve with chilli crème fraîche, jalapeños and coriander.