Rinse kale, remove stems, and chop into fine pieces.
Heat 1 tablespoon broth in a medium soup pot. Sauté onion in broth over medium heat for about 5 minutes, stirring frequently.
Add garlic and continue to sauté for another minute.
Add rest of broth, carrots, and celery and bring to a boil on high heat.
Reduce heat to a simmer and cook for another 5 minutes.
Add potatoes and kale, and cook until potatoes are tender about 15 more minutes.
Add remaining ingredients and cook another 5 minutes.