Tape down 2 chopsticks parallel to each other
Place potatoes between chopsticks and make ⅛ inch slices all the way across without cutting through to the bottom
Gently rinse sliced potatoes in cold water
Bring 4 quarts of water to boil
Add 1 tbs Kosher salt & 2 tbs white vinegar
Boil potatoes for 15 minutes
In the meantime:
In a sauce pan add oil, butter, garlic and salt
Cook on low heat for 5 minutes
Turn off heat, add herbs and let sit to infuse
Cook potatoes:
Heat oven to 425 degrees
Place potatoes on baking sheet or in oven safe pan
Brush oil/butter over/inside potatoes to cover well (do not spoon garlic yet)
After ~25 minutes, remove from oven and spoon more butter over potatoes and put back in oven
After another ~25 minutes, spoon more butter AND garlic/herbs over potatoes
Finish cooking another ~10 minutes until cripsy on top
Spoon more butter mixture over potatoes
Top with parsley/chives/scallions (and/or whatever else you want)