Avocado Grapefruit Salad with Sour Cream-Honey Dressing

3 Pink grapefruits; chilled
3 md Ripe avocados; halved, seeded, and peeled
3/4 c Sour cream
Juice of 2 large limes
3 tb Honey
1/2 ts Salt
1/4 ts Freshly-ground black pepper
Mint leaves; for garnish


Slice ends off grapefruits and stand upright on a counter or tabletop. Cut away skin and membrane, exposing fruit. Working over a bowl to catch the juice, separate sections by slicing with a serrated knife between membranes. Remove and discard the seeds. Slice avocado halves lengthwise in 1/2-inch slices. Arrange alternating grapefruit sections and avocados slices on 6 salad plates. Whisk together sour cream, lime juice, honey, salt, and pepper in a small bowl. Just before serving, spoon about 2 tablespoons dressing in a stripe over each salad. Garnish with mint leaves and serve.