For the dressing:
2 tablespoons fresh lime juice
2 tablespoons white wine vinegar or cider vinegar
Salt and freshly ground pepper to taste
1 small or medium garlic clove, minced
1 scant teaspoon cumin seeds, toasted and coarsely ground
1/4 cup extra virgin olive oil
1/4 cup buttermilk
2 to 4 tablespoons chicken stock (from poaching the chicken breasts), as needed
For the salad:
about 4 cups shredded chicken
Salt and freshly ground pepper
4 large radishes, diced, plus 2 radishes, sliced
1/4 cup chopped fresh cilantro
2 to 3 chipotle chiles en adobo, rinsed, seeded and cut into thin strips
8 romaine lettuce leaves, cut crosswise into wide strips
1 small avocado, sliced
Mix together the ingredients for the dressing.
Place the shredded chicken in a large bowl and season to taste with salt and pepper. Toss with the diced radishes, cilantro, chipotles and all but 2 tablespoons of the dressing.
Toss the romaine lettuce with the remaining dressing, and arrange on a platter. Top with the salad. Garnish the top of the salad with the sliced radishes and the sliced avocado, and serve.
Serve as a salad or use to fill corn tortillas for soft tacos.