Street Food, at Home: Spicy 'Freestyle' Fries ()

Freestyle fries, i.e. Guailu Yangyu! A classic from the Guizhou province, you can find vendors frying up these fries from street corner to street corner in Guiyang. Written recipe is over here on /r/CasualChina if you prefer recipes in Reddit-form: 怪噜洋芋/ INGREDIENTS 1. Yukon Gold Potatoes, ~3, 550g. Russets are also ok, but can more easily make the sauce gloopy if overcooked. 2. Sauce: 2 tbsp kimchi liquid, 2 tbsp water, 1.5 tbsp dark Chinese vinegar (陈醋/香醋), 1 tbsp light soy sauce (生抽), 1 tbsp toasted sesame oil (麻油), 1 tbsp chili powder (辣椒面) -or- cayenne pepper, 1 tsp Sichuan Peppercorn oil (花椒油), 1 tsp sugar, 1/2 tsp salt, 1/2 tsp MSG (味精). If you do happen to lacto-ferment your own vegetables in the Guizhou or Sichuan manner, use 4 tbsp of that liquid and up the chili powder quantity to 1.5 tbsp. 3. Herbs: 15g scallion (葱), 15g cilantro (香菜), 40g pickled daikon (酸萝卜) -or-