How to Poach an Egg
Fill a large skillet with 2 inches of water and add 1 tablespoon of vinegar. Have a bowl of cool water at the ready. Bring the water in the skillet to a boil, reduce heat to a very low simmer and keep it at a simmer. Break one egg at a time in the water and using a spatula, immediately push the outsides of the white over toward the yolk. Add additional eggs and repeat. Once the first egg has been in the water for 4 minutes, lift it out of the water with a slotted spoon and check it - the white should be cooked and the yolk still soft.
