STEP 2/4
Add 10 tablespoons of water, 7 tablespoons of soy sauce, 4 tablespoons of oligosaccharide, half a handful of anchovies in soup, and 1 piece of kelp, and cook the potatoes half-cooked over medium heat.
STEP 4/4
As the sauce boiled down, the potato was fully cooked to the inside, and the edge of the potato was completed without being crushed.