Place chicken in a 3 1/2- to 4-quart slow cooker. Add the next five ingredients (through salt).
Step 2
Cover and cook on low for 7 to 8 hours or on high for 3 1/2 to 4 hours.
Step 3
If using low, turn cooker to high. In a small bowl whisk together the half-and-half and flour; add to soup in cooker. Stir in peas, goat cheese (if using), and thyme. Cover and cook 15 minutes more or until thickened. If desired, top servings with additional crumbled goat cheese and Caramelized Shallots.