Cowboy Pinto Beans (Pam Furlong)

2 cups dry pinto beans

1 chopped yellow onion

1 stick butter

1 ground chipotle chili

Salt & pepper to taste

Rinse pintos in strainer

Put in crock pot:

Rinsed beans, onion, butter

Optional: Two cans stewed tomatoes

Water - Fill 1 inch from top

Cook on high 8-10 hours