Inexpensive and quick to prepare, these delicious sweet potato röstis work brilliantly with a salad, as a burger filling or as a lunch box snack. To make this vegan, swap the mayonnaise for vegan ...

When ready to cook, take handfuls of the mixture and squeeze out as much liquid as you can (the more the better to prevent soggy rosti). Place the squeezed kumara in another bowl and mix through a ...

Place a large flat plate on top of the rosti and flip it over onto the plate, then slide the rosti back into the pan with the uncooked side down so that this can now get golden. Cook for a further ...