1. Place the chicken breasts on a flat, working surface.
2. Mix all the remaining ingredients together, except for the peppercorns.
3. Reserve half of the mixture.
4. Divide the remaining half onto the chicken breasts.
5. Roll up the breasts, tucking in ends.
6. Place in a lightly oiled baking dish.
7. Sprinkle with the peppercorns.
8. Bake in a preheated oven at 350 degrees for 45 minutes, or until chicken is fork tender.
9. Remove from oven.
10. Cut each breast in half.
11. Place on a platter with the reserved Avocado mixture.
12. You may garnish the platter with fresh basil, lime slices, small tomatoes & avocado slices (or any of these in different combinations).

*Large avocados are recommended for this recipe. A large avocado averages about 8 ounces. If using smaller or larger size avocados adjust the quantity accordingly.