The Food Lab: Better Home Cooking Through Science

Pour the water into a lidded 3-quart saucepan and bring to a
boil over high heat. Carefully lower the egg(s) into the water
and cook for 30 seconds. Add the ice cubes and allow the
water to return to a boil, then reduce to a subsimmer, about
190°F. Cook for 11 minutes. Drain the egg(s) and peel
under cool running water.