A course on how to cook with an air fryer is being put on for a third time because it has proven so popular. Grantham College will bring back its six-hour course on 26 February and 5 March. It is part-funded by Lincolnshire County Council and takes place in the evenings.

But much of what you put into an air fryer is still packed or coated with butter, oil, or shortening. This is especially true when you’re air frying traditionally-fried foods li