Preheat oven to 375° F.
Stir together oil and cornstarch in a small bowl until combined.
Stack wonton wrappers and halve diagonally. Arrange in 1 layer on a large baking sheet and brush tops with oil mixture. Sprinkle evenly with sesame seeds and kosher salt and bake in middle of oven until golden brown, 5 to 6 minutes. Transfer crisps as browned to a rack to cool.
Alternative seasoning option - add 1 teaspoon Z'atar seasoning to the cornstarch, add just a bit more oil (perhaps an additional 1-2 teaspoons); brush onto wrappers; add finishing salt and sesame seeds, bake as noted above.
*Source - Epicurious web site