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