Place eggs in a single layer in a saucepan.
Add enough cold water to cover the eggs by about 1 inch (2–3 cm).
Set the pan over medium-high heat until the water reaches a rolling boil.
Reduce heat to maintain a gentle boil.
Start timing:
Soft-boiled: 6–7 minutes
Medium-boiled: 8–9 minutes
Hard-boiled: 10–12 minutes
Transfer eggs to an ice bath or run under cold water for 1–2 minutes to stop cooking.
Peel under cold running water.