Korean Stir-fried Julienne Potatoes

Potatoes are julienned into matchstick-thin strips, then soaked in cold water for at least ten minutes to rinse away surface starch - a step that is not optional. Skipping it means the strips clump together in the pan, glueing themselves into a starchy mass that cannot be salvaged. After draining and drying thoroughly, the strips hit a hot, lightly oiled pan and cook for just three to four minutes, stirred and tossed frequently to prevent browning. The target is a strip that is fully cooked through but retains an audible crunch when bitten, a narrow window between underdone rawness and mushy softness that takes practice to hit consistently. The seasoning is deliberately minimal - salt and a small splash of vinegar, occasionally a little sesame oil - to let the potato's clean, starchy sweetness remain the central flavor. Sliced cheongyang chili stirred in at the end adds a sharp heat without muddying the clean taste profile. This banchan has been a fixture of Korean school lunches and company cafeterias for decades precisely because it is vegetarian, inexpensive, and universally acceptable to even the most selective eaters.