Cooking collard greens in a slow cooker is a simple and convenient method. To do so, place all the ingredients in the slow cooker, but adjust the broth quantity to 3 cups instead of 4. This reduction in liquid helps maintain the right consistency. Set the slow cooker to the low setting and allow the collard greens to cook for 8-9 hours. This slow and gentle cooking process allows the flavors to meld, and the greens to become tender. It's an easy and hands-off approach to achieving delicious, slow-cooked collard greens.