Place all ingredients except peaches in a large bowl and whisk until well blended and sugar is dissolved. Transfer to a high powered blender (I used a Vitamix) and add peaches (you might have to do this in two batches). Blend on high until smooth, about 1 minute. Transfer to an air-tight container and refrigerate until chilled.
Notes
Serves 10.
Recipe by DessertedPlanet.com at https://dessertedplanet.com/chilled-peach-soup/