This vegetarian bean chili is super flexible! You can use either dried or canned beans (see tips below for using canned beans). This recipe is written for cooking with dried beans on the stovetop, but you can easily make it in a slow cooker, too (see below for slow cooker instructions)! We use chipotle peppers in adobo sauce for a delicious smoky heat. You can find small cans of these in the international aisle of most grocery stores. Two peppers make a mild-to-medium chili. Add one or two more peppers for a spicier chili, or use some of the adobo sauce from the can.