4 tablespoons potato starch
2 cups of baked potato stock
Put chilled baked potato stock into a pot and whisk in the potato starch. Continue whisking the starch and stock together and bring it to boil, forming a gel. Remove from heat.
Drying: Spread the potato gel on a sheet of parchment paper. The gel should be about 3 mm thick.
Dry in the oven at 135 F for 2 hours until fully dry.
Frying: Break the dried sheet into irregular pieces about the size of playing card. Fry these potato chips at 350 F until clear and crisp. Remove and place on paper towel, then season with kosher salt.