Meanwhile, in blender place avocados, tomatillos, 1/2 cup of the chicken broth, cream, boullion granules and salt. Cover; blend on high speed 30 seconds until mixture is smooth. In 1 quart saucepan, heat remaining 1 tablespoon of the oil. Stir in the avocado mixture; cook on medium heat for 5 minutes. Stir in the shredded chicken; cook and stir about 2 minutes until mixture is hot.