how long does it take clams to cook in clam chowder
1 Cover the clams and put in refrigerator for later. 2  In a slow cooker combine the bacon, potatoes, onion, carrot, soup, ground black pepper, evaporated milk and reserved clam juice with water. 3  Cover and cook on low setting for 9 to 11 hours OR on high setting for 4 to 5 hours.