Preheat oven to 450F
Using a mandolin, slice potatoes into 3mm rounds
Add potatoes, truffle oil, and truffle salt to a large bowl, mix until well combined
Add 1 teaspoon of truffle oil to a medium cast iron skillet
Assemble galette by layering potato slices in three rings covering the bottom of the pan
Continue arranging potatoes until you have three layers of rings
Add skillet to oven and bake for 20 minutes
Check galette after 20 minutes, if the top is brown cover it with foil and cook for an additional 5 minutes, if it needs to brown more cook for an additional 5 minutes uncovered.
Remove from oven, loosen edges with a spatula and flip onto a serving plate
Truly enjoy