In large pot, combine the chicken, water, onion and bouillon. Bring to a boil. Reduce heat; cover; and simmer for 10 to 15 minutes. Stir in pecans and dill and simmer, uncovered, for 5 to 10 minutes longer.
You can add more bouillon or dill to your taste.
(Prep time includes cooking the chicken. I like to use skinless, boneless chicken thighs.).