Every time I look at this recipe, the image of an avocado ranch comes to mind. Rounding them up ... branding them ... Okay, enough. As is the case with any dish using avocados, the challenge here is to make it during the half-hour or so when the avocados you have on hand are perfectly ripe. Also, make only enough of this dressing for one use, as it does not hold up well, even refrigerated.