-
1
Soak the rice in cold water for 30 minutes. Drain thoroughly. Toss with the neutral oil and the pinch of salt until every grain is coated. Spread in a single layer in a freezer bag or container and freeze overnight. The grains are ready when they are completely solid and brittle.
-
2
Bring the stock or water to a rolling boil in a heavy-based pot. If using water, add the dried scallops (gan bei) now; they will impart depth throughout the cook. Add the frozen rice directly from the freezer — do not thaw. Stir once to separate any clumps.
-
3
Return the liquid to a boil, then reduce to a steady, active simmer — not a bare tremble, not a violent roll. Cook uncovered, stirring every 10 minutes to prevent the starch from settling and scorching on the base, for 45–60 minutes (frozen rice) or up to 3 hours (unfrozen rice). This is where the dish lives or dies: do not stop cooking when the grains are merely soft. Continue until every grain has completely dissolved into the liquid and no intact rice is visible; the congee must flow like a thick cream when the spoon is drawn through it.
-
4
Assess the consistency: lift a ladleful and let it fall back into the pot. It should ribbon off the ladle in a slow, silky sheet — not in lumps, not in thin water. If too thick, add hot stock or water and stir through; if too thin, continue simmering. The surface should appear smooth, with no grain.
-
5
Season the pot with salt to taste. Ladle into warmed bowls. Lay sliced ginger, sliced scallion, and quartered pi dan over each portion. Finish with a drizzle of sesame oil. Set the you tiao sections alongside for dipping. The congee should still be moving gently in the bowl when it reaches the table.