Wash the potatoes, and scrub them until they are dirt-free.
Using a sharp knife or mandolin, slice the potatoes thinly.
Dry the slices with the help of a paper towel.
Line the baking sheet with parchment paper and lightly oil it.
Add potato slices, olive oil, garlic powder, and salt in a bowl.
Toss until the spices cover the potato slices.
Place the slices on the baking sheet.
Place the baking tray on a preheated oven at 400 degrees F for 30 minutes.
After 15 minutes into the cook, turn over the slices.
Once the chips get a nice golden-brown color, remove them from the oven and let them cool a bit before serving.