Score the tip of each peach (opposite the stem end) into an X with a knife.
Fill a large bowl with water and ice; set aside.
Bring a large pot of water to a boil.
Working in small batches of 3-4 peaches at a time, ease peaches into the boiling water and heat for 60 seconds. (The water will cease to boil with the addition of the peaches, but leave the heat on.)
Use a slotted spoon to remove peaches from the boiling water and transfer into the ice water. Leave peaches in the water for about a minute, or until cooled.
Transfer peaches to a dry towel and pat dry.
Starting with the scored end, use your fingers to peel the peaches. (It can be useful to use a knife to help “grab” the peels, sometimes.)
Notes
The peach skin should peel away easily and without much effort. If not, you can repeat the blanching process.