Prepare the Potatoes:

1. Preheat the Oven: Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper or a silicone baking mat to prevent the chips from sticking.
2. Slice the Potatoes: Wash and scrub the russet potatoes thoroughly. Using a sharp knife or mandolin, slice the potatoes very thinly, about 1/16-inch thick. Thin slices are key for crispy chips.
3. Soak the Slices: Place the potato slices in a bowl of cold water and soak them for at least 10 minutes to remove excess starch. This will help the chips crisp up better when baked.
4. Dry the Potatoes: Drain the water and pat the potato slices dry with a clean kitchen towel or paper towels to remove excess moisture.

Season the Potato Chips:

5. Toss in Oil and Seasonings: In a large mixing bowl, toss the potato slices with olive oil until they are evenly coated. Add the garlic powder, onion powder, dried dill, parsley, ranch seasoning, salt, and pepper. Stir until the seasoning mixture is evenly distributed.
6. Add Parmesan Cheese: Sprinkle the grated Parmesan cheese over the potato slices and toss again to ensure the cheese sticks to the chips.

Bake the Chips:

7. Arrange on the Baking Sheet: Arrange the seasoned potato slices in a single layer on the prepared baking sheet. Be sure not to overlap the slices to allow even baking. You may need to bake the chips in batches depending on the size of your baking sheet.
8. Bake the Chips: Bake the chips in the preheated oven for 25-30 minutes, flipping them halfway through the baking time. Keep an eye on them towards the end to avoid burning. The chips should be golden brown and crisp.
9. Cool the Chips: Once baked, remove the chips from the oven and let them cool on the baking sheet for a few minutes. They will crisp up further as they cool.

Serve and Enjoy:

10. Serve: Once the chips have cooled slightly, serve them in a bowl or on a platter. Enjoy them as they are, or with a side of ranch dipping sauce for an extra indulgent treat.