At its best, sorbet is simply fruit transformed. Crisp slices and whole berries are perfect in May and June, but by the last stretch of summer, I crave all sorts of icy but melty goodness. Late August calls for a lush cup of sorbet. This no-churn nectarine version will help to stave off the restless feeling that kicks in when we realize the days are getting shorter again. Flavorful and refreshing, it does not require any special equipment other than a blender, which you likely have on the counter already for cocktails (and mocktails!). Eat it icy or let it melt as you join me in an August wish: “If…