Combine first 9 ingredients in an electric slow cooker. Add 1/4 cup chicken broth. Cover and cook on low for 7 hours.
Combine remaining 1/4 cup broth and flour in a small bowl; stir with a whisk until smooth. Add broth mixture to slow cooker. Cover and cook on low for 30 minutes. Cut turkey into slices.
This recipe has been retested for Cooking Light Slow Cooker Tonight, 2012
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