Mix the kale, oil and salt, transfer to a baking tray lined with baking paper. Bake for approx. 30 mins. in an oven preheated to 130 °C (convection). Divide into two bowls while still warm.
Lime & curry crisps
Mix the curry powder, lime zest, pepper and banana, season half of the kale crisps with this mixture.
Vanilla & chilli crisps
Combine the vanilla seeds with the remaining ingredients, use this to season the remaining kale crisps.