**1. Prepare the Carrots:**
- Place the carrots in the slow cooker, spreading them out evenly.
**2. Make the Glaze:**
- In a mixing bowl, whisk together the melted butter, maple syrup, brown sugar, cinnamon, nutmeg, and salt until combined.
**3. Coat the Carrots:**
- Pour the glaze over the carrots, tossing to coat them evenly.
**4. Cook:**
- Cover the slow cooker and cook on **low** for 4-5 hours or on **high** for 2-3 hours, until the carrots are tender. Stir halfway through to ensure even cooking.
**5. Serve:**
- Transfer the glazed carrots to a serving dish and garnish with fresh parsley, if desired. Serve warm.