Step 3

Arrange 14 potato slices in a single layer on each of 2 baking sheets coated with cooking spray. Place a small herb sprig on each potato slice; cover with another potato slice. Press gently to adhere. Coat potato stacks with cooking spray. Sprinkle evenly with salt. Working with one sheet at a time, cover potato stacks with parchment paper. Place an empty baking sheet on top of parchment paper; set a cast-iron or heavy ovenproof skillet on second baking sheet. Bake at 400° for 25 minutes.