01 - Preheat oven to 400°F and line a baking sheet with parchment paper or silicone baking mat.
02 - Arrange pepperoni slices in a single layer on the baking sheet, leaving space between each slice.
03 - Sprinkle cheddar and mozzarella cheeses evenly over each pepperoni slice.
04 - Optionally sprinkle dried Italian herbs and red pepper flakes on top for additional flavor.
05 - Bake for 8-10 minutes until cheese is bubbling and golden with crisp pepperoni edges.
06 - Let chips cool on the tray for 2-3 minutes to set, then transfer to paper towel-lined plate to drain excess oil.
07 - Serve warm or at room temperature.