Preparation: Heat chicken broth. Cut fish fillets into 1" by 2" pieces. Cut off root ends of spinach & thoroughly wash. Slice bamboo shoots into paper-thin strips; add to stock as it is heating. Using wire strainer, blanch fish pieces in boiling water for 15 seconds, reserve. Add salt to water. Blanch spinach for 10 seconds, drain & reserve. When stock reaches rapid simmer (don't let it boil), add fish, spinach & sherry. Cook for 3 minutes. Heat peanut oil in ladle over flame. Mix oil into soup, transfer to serving bowl, & serve.