EASY Slow Cooker White Chicken Chili

I love soup of all kinds. I love my slow cooker (have I ever mentioned that?). This recipe won first prize at a church chili cook-off. Enough said.

INGREDIENTS
2-3 frozen boneless, skinless chicken breasts
1 medium onion, chopped (optional)
1 1/2 teaspoons garlic powder OR 2 fresh garlic cloves, minced
2 cans Great Northern Beans, drained & rinsed (I could only find mixed cans of pinto and northern beans, which turned out just fine)
1 1/2 cups chicken broth
1 or 2 (4 ounce) cans chopped green chilies (I used one and it was not very spicy at all)
1 teaspoon salt
1 teaspoon ground cumin
1 teaspoon dried oregano
1/2 teaspoon pepper
1 cup sour cream
1/2 cup heavy cream
1/2 tablespoon cornstarch (optional)

INSTRUCTIONS

(1)Add everything except sour cream and heavy cream to your slow cooker (even the frozen chicken).
(2)Cook on low 5-7 hours.
(3) Take your chicken out and shred or chop it up, then add it back to the slow cooker.
(4) Add your sour cream, heavy cream, and cornstarch (the cornstarch will make it a little thicker if you want). Stir it up.
(5) Let it cook for a few more minutes until warm. Enjoy!!

(Adapted from HERE)