Jamie's Pulled Pork Chili Recipe

2 (10.75 ounce) cansfat-free

low-sodium chicken broth

2 cups diced tomatoes

1 cup drained and rinsed kidney beans

1 large onion

chopped

2 tablespoons chili powder

2 teaspoons ground cumin

1 (2 pound) pork shoulder roast

1 (8 ounce) package shredded Cheddar cheese (such as Kraft®)

1 ¼ cups sour cream