1Preheat your oven to 220°C (428°F) and line two large baking sheets with parchment paper.
Wash and peel the Yukon Gold potatoes. Using a mandoline or a sharp knife, slice the potatoes very thinly (about 1-2 mm thick).
Place the potato slices in a large bowl of cold water and let them soak for 20 minutes to remove excess starch. This helps achieve extra crispiness.
Drain the potato slices and pat them completely dry with a clean kitchen towel or paper towels.
In a large bowl, toss the dried potato slices with the olive oil until evenly coated.
Arrange the potato slices in a single layer on the prepared baking sheets, making sure they do not overlap.
Sprinkle the sea salt evenly over the potato slices.
Bake in the preheated oven for 15-20 minutes, flipping the chips halfway through, until golden brown and crispy. Watch closely to prevent burning, as baking times may vary depending on thickness.
Remove the chips from the oven and let them cool on a wire rack for a few minutes to crisp up further.
Serve immediately or store in an airtight container once completely cooled.