Preheat oven to 150 degrees. Line an oven tray with baking paper.
Tear leaves off the tough middle steam and rip into similar sized pieces. Discard any tough stems.
Place kale in a large bowl and drizzle over the olive oil and salt. Make sure to rub the oil over each kale leaf to coat evenly.
Arrange leaves on a lined baking tray, avoiding having them overlap. You may need an extra tray if making a big bunch.
Cook in oven for around 8-12 minutes (depending on the size of the chips), keeping a close eye from around the 8 minute mark. Remove from oven once crispy and dry. Make sure to remove before they burn - they turn very quickly, so keep an eye on them!
Let them sit for a few minutes. Enjoy.