1. Mix the cornstarch and water evenly, add vinegar, sugar, dark soy sauce, light soy sauce, minced ginger, and minced garlic. Use a mixer or egg beater to beat into a smooth slurry, then add chopped coriander. Continue to stir evenly.

2. Take out the cooked pig trotters and put them on a plate.

3. Pour in the prepared slurry, spread the juice evenly on the pig's trotters, and let it absorb the flavor.