2. On a cutting board, halve the tofu horizontally; cut each half into 6 pieces to make 12 total.
3. With a wide spatula, gently transfer the tofu to the plate. Scatter the ginger on top. Set the plate on the cake rack.
4. Cover the skillet. Bring the water to a boil, lower the heat to medium, and steam the tofu for 4 minutes (check to make sure there is enough water in the skillet; add more if necessary). Turn off the heat and uncover the pan. With one end of a dish towel in each hand, carefully transfer the plate from the skillet to a heatproof surface on the counter.
5. In a small saucepan over medium heat, heat the soy sauce and chicken stock until it starts to bubble gently. Turn off the heat and spoon the sauce around the tofu - not on top. Scatter the scallions on top.
6. Wipe out the saucepan. Heat the oil for 1 minute or until it starts to shimmer. Carefully pour the oil into a soup ladle. Drizzle the hot oil over all the scallions. You’ll hear them sizzle and they’ll wilt slightly and release a delicious aroma. Serve with white or brown rice. Adapted from Rice Valley restaurant in Newton.