For two cups of standard long-grain white rice, you want three cups of water. Yes, three, not four. Quirky, right? It’s a 1.5:1 ratio.
Why? Because two cups of rice need less water proportionally than one cup. The steam does the heavy lifting. If you use four cups, you’ll get rice pudding. Delicious, but not what you ordered.
Pro tip: For brown rice, flip the script. Use four cups of water for two cups of brown rice. Brown rice is a tough nut. It needs a longer bath.