In a #large soup pot{}, melt @unsalted butter{1/2%oz}. Add @diced onion{1/4%cup} and @diced celery{1/4%cup}; sauté until tender. Add @flour{1/2%oz} to make a roux. Cook for ~{3%minutes}. Add @okra{1/2%cup}, @vegetable stock{8%cups}, @gumbo filé{1/2%Tbsp}, @diced tomatoes{1/2%cup}, @cayenne (or less){1/2%Tbsp}, @white pepper{1/2%tsp}, @cooked rice{1.5%cups}, and @salt{} and @pepper{} to taste and bring to a boil. Simmer for ~{15%minutes}.