Add corn to a 3 qt slow cooker. Add half and half, sugar, salt, and pepper. Stir to combine.
32 ounces frozen corn, ⅔ cup half and half, 1 tablespoon sugar, ½ teaspoon salt, ½ teaspoon fresh ground black pepper
Top with cubed butter and cream cheese.
8 tablespoons unsalted butter, 8 ounces cream cheese
Place the lid on the slow cooker and cook on high heat for 2 to 3 hours or low heat for 5 to 6 hours.
Remove lid and stir cream cheese and butter into mixture until combined. Taste to determine if additional seasoning is needed.
Place lid on the slow cooker and continue cooking for 15 minutes on high or until desired consistency is reached.
Transfer creamed corn to a serving dish and garnish with additional fresh black pepper and chives if desired.