While the chicken is cooking, blend the chipotle peppers with a small amount of water or chicken broth until smooth. Set the mixture aside (3 chipotles in adobo).
Reduce the burner to low heat. Add the blended chipotle mixture, half & half, heavy whipping cream, and chicken bouillon to the pan. Stir well to combine (1/2 cup half n half, 1 cup heavy cream, 1/2 tsp chicken boullion.
If using a cast iron pan: Remove the pan from heat and whisk the sauce for 5-10 minutes to allow it to thicken without curdling.For other pans: Keep the pan on low heat and simmer for 5-10 minutes, stirring frequently to prevent curdling. If the sauce is too thin, create a cornstarch slurry by mixing cornstarch with water. Add the slurry gradually to the sauce while whisking until it reaches your desired creaminess (start with 1 tsp cornstarch to 1 tbsp water).
Place chicken breasts back into the pan and cover with enough sauce.