Cut off both ends of the plantain.
Score the plantain lengthways (deep enough to go through the skin only).
Use your thumb to peel away the skin and discard.
Slice the plantain in half then use the crinkle cutter (if you are using it) to slice the plantain into fries (¼ inches in thickness).
Fill a medium sized saucepan with water and bring to the boil.
Add the curry powder, onion granules, garlic granules, paprika and pink salt.
Parboil for 3-4 minutes, just until the fries are almost transulcent but not extremely soft (this is very important) .
Once done, immediately drain off the fries in a colander and gently rinse with cold water (this will prevent them from cooking any further).
Place the fries in a zip lock bag or a bag with secure handles.
Add ⅓ cup of the curry sauce.
Secure the bag by zipping or tying it.
Shake the bag to completely coat the fries.
Inspect the fries, they should be completely coated, if not, add more sauce, so you should be using ½ cup instead, secure the bag and shake again if needed.
Line the air fryer basket (this is optional).
Air fry at 180C/356F for 20 minutes or until they are golden and crispy.
Half way through the cooking time, shake the basket and spray the fries with olive oil spray.
Season with pink salt and serve accordingly.