Agnes Marshall rapidly gained recognition as a leading culinary authority. Her cooking school, publications, and inventions made her a household name.

Agnes Marshall frequently gave public lectures and cooking demonstrations, sharing her expertise with a wide audience. These events contributed to her popularity and solidified her reputation as a culinary expert.

Agnes Marshall's work had a significant influence on Victorian cuisine. Her recipes and techniques helped shape the culinary landscape of the era, and her emphasis on innovation inspired others to experiment and push boundaries. She set trends and inspired generations of cooks, professional and amateur.