How to Make It
Grease the interior of the slow cooker crock with butter or nonstick cooking spray.
Mix together the first 8 ingredients (through rosemary) in the prepared crock.
Pour the melted butter over everything and stir together gently.
Cover. Cook on High 2 1⁄2 hours. Remove the lid if you’re around. Cook another 30 to 60 minutes on High, until the potatoes are hot in the center of the crock. If you’re not able to remove the lid after 2 1⁄2 hours, the potatoes will be fine. They’ll have just a bit more moisture but no less flavor.
Top with fresh rosemary. Serve hot.