Dinner Tonight: Vegetarian Chili

1 medium white onion, chopped

1 orange bell pepper, stemmed, seeded, and chopped

1 yellow bell pepper, stemmed, seeded, and chopped

1 jalapeno, stemmed, seeded, and diced

1 (28-ounce) can whole tomatoes

1 (12-ounce) bottle porter or amber ale

2 (15-ounce) cans red kidney beans

2 (15-ounce) cans black beans

2 tablespoons white wine vinegar

6 garlic cloves, minced

2 tablespoons chili powder

1 tablespoon ground coriander

1 tablespoon ground cumin

2 chipotle chilies in adobo, chopped (about 2 tablespoons)

1 tablespoon sweet smoked paprika

salt

1 scallion, ends trimmed, thinly sliced

sour cream