To make hard boiled eggs, the typical cooking time ranges from about 10 to 12 minutes once the water reaches a rolling boil. Here is a detailed guide:

• Place eggs in a single layer in a pot and cover with cold water by about 1 inch.
• Bring the water to a rolling boil over high heat.
• Once boiling, turn off the heat and cover the pot.
• Let the eggs sit in the hot water for 10 to 12 minutes depending on your preference:
  • 10 minutes for creamy, vibrant yellow yolks
  • 12 minutes for fully set yolks with a firmer texture
• After the time is up, immediately transfer the eggs to an ice bath for at least 5 to 14 minutes to stop cooking and make peeling easier

If you prefer softer yolks, you can reduce the time:

• 6 minutes yields a runny yolk
• 8 minutes yields a jammy yolk
• 10 minutes gives mostly set yolks but still slightly soft in the center

For fully hard-boiled eggs with firm whites and yolks, 12 minutes in hot water followed by an ice bath is the standard method. This approach prevents overcooking and the greenish yolk discoloration