NYT Cooking: This salad is both dead simple to make and highly luscious. It gets a velvety richness from the avocados. The salad is enlivened by a splash of red wine vinegar in the dressing and a handful of briny capers sprinkled on top. The herbs here are used in two ways, both chopped into a garlicky salsa verde-like dressing, and strewn in whole leaves across the plate. Choose your avocados carefully for...