Combine broth, beans, undrained tomatoes, corn, carrot, onion, chili peppers, chili powder, and garlic in a crock pot (3 1/2 to 4 qt size is best).
Cover and cook on low-heat setting for 10 to 12 hours or on high-heat setting for 5 to 6 hours.
Stir together flour, cornmeal, baking powder, and pepper in a medium sized bowl.
Mix together egg white, milk, and oil in a small bowl.
Add to flour mixture and stir with a fork just until combined.
Divide dumpling mixture into 6 mounds and drop on top of the bubbling soup.
Cover and cook on low-heat setting for 30 minutes more or on high-heat setting for 20 minutes more (don''t give in to temptation to lift lid) or until a wooden toothpick inserted in center comes out clean.