View the original recipe via:
You can choose to leave the peel of the peaches on. The taste will be the same, but the milkshake won't be really smooth and that would be too bad. And besides, drinking the milkshake with a straw won't be easy either.
Get rid of the peach peel using a paring knife, or a potato peeler. Chop the peaches into large pieces and add them to the blender along with the milk. BLEND until you've got a smooth mixture.
ADD the vanilla ice cream and blend it again.
Peaches are a natural sweetener and depending on the kind of vanilla ice cream your milkshake will be sweet enough.
But taste the milkshake, if you think it isn't sweet enough, you can add a little bit of powdered sugar.