Put kale leaves in a large bowl (you can work in batches if you need to)

Add olive oil (about 2 tbsp or so)

Add vinegar (about 1 tbsp)

Massage kale leaves until they are coated with the oil and vinegar

Lightly sprinkle with sea salt and pepper

Lay in single layer on dehydrator sheets

Dehydrate at 110 degrees for 6-8 hours or until crispy

Store in a zip top bag or other storage container. Will stay crispy for a week or longer in your pantry.