Rinse 1 cup sushi rice in cold water until the water is mostly clear
Drain well
Cook the rice with 1 cup water (or follow your rice package for sushi rice)
Bring to a boil, then reduce to low and cook covered until water is absorbed
Remove from heat and let stand covered 10 minutes
Transfer rice to a non-metal bowl
Mix 3 tbsp rice vinegar, 1 tbsp sugar, and 1 tsp salt until dissolved
Pour seasoning over warm rice
Gently fold with a spatula, using a cutting and turning motion
Fan or let cool to room temperature (or slightly warm)
Cover with a damp cloth while assembling sushi
Use rice at room temperature for best results