Remove the stalk from the kale and discard it.

Rinse the kale thoroughly and cut the leaves into rough pieces.

Pat them dry with a clean tea towel.

Place the kale in a freezer bag and pour oil and salt into the bag. Massage/shake the bag so that the oil is distributed on all of the kale.

Bake in the oven for 25-30 minutes at 150 degrees Celsius (302 degrees Fahrenheit) conventional oven.

Take them out and pour them into a large bowl with grease-absorbing paper/kitchen roll.

They will become crunchy and crispy afterwards.

Enjoy.