Gently brush the sliced tomatoes in the olive oil to coat slices. Place slices without overlapping onto dehydrator shelves or a baking pan. If you are baking preheat oven to 325°F

In a small bowl whisk together the remaining ingredients. Sprinkle mixture over each slice.

Depending on how thick the slices of tomato are, dehydrating could take anywhere from 15-30 hours. If baking check every 30 minutes until edges show some charring, could take 2-3 hours.

Note: The desired result is crispy, not chewy. If it is note quite crisp enough after the estimated cooking times, just add more time to achieve the crispness you want.