In a large saucepan or Dutch oven, heat canola oil over medium heat. Add onion; saute until tender, about 5 minutes. Add garlic, and cook 1 minute more. Stir in cumin; cook 5 minutes. Add turkey; cook, crumbling ground turkey, until no longer pink. Add broth, beans, jalapeno, marjoram and savory. Bring to a boil. Reduce heat; simmer, covered, for 45 minutes, stirring occasionally., Uncover; cook 15 minutes more. Dissolve cornstarch in water; stir into chili. Bring to a boil. Cook and stir 2 minutes. If desired, serve with cheese and sliced red onion.