3 1/2 tablespoons paprika
2 1/2 tablespoons chili powder
1/2 teaspoon cayenne
1/4 teaspoon ground cumin
1 teaspoon sugar
1/2 teaspoon salt
3 tablespoons cooking oil
3 tablespoons flour
2 cloves garlic, minced
3 cups canned low-sodium chicken broth or homemade stock
1 1/3 pounds boneless, skinless chicken breasts (about 4 in all)
1/4 teaspoon fresh-ground black pepper
1/2 pound tortilla chips
1/4 pound feta, crumbled (about 3/4 cup)
1/2 cup sour cream
1 red onion, sliced thin
1/2 cup cilantro leaves