Scatter the pieces of butter evenly over the top of the frozen corn.
Place the block of cream cheese (or large chunks) directly over the frozen corn and butter, as shown in the classic process shot: hands placing a solid block of cream cheese right on top of the corn in the slow cooker.
Hands placing cream cheese over corn in a slow cooker
Sprinkle the granulated sugar evenly over everything, then pour the milk around (not directly on top of) the cream cheese block so it can melt gently as it heats.
Cover the slow cooker with the lid and cook on LOW for 3 to 4 hours, or on HIGH for 1 1/2 to 2 hours, until the cream cheese and butter are fully melted and the corn is hot and tender.
Remove the lid and stir well, breaking up the cream cheese block and mixing until the sauce is smooth and creamy and all the corn is coated. If it seems too thick, stir in a splash or two of extra milk until it reaches your preferred consistency.
Creamed corn being stirred until smooth in the slow cooker
Season to taste with salt and black pepper, if using, and stir again. Switch the slow cooker to WARM and keep covered until ready to serve. Give it a quick stir right before serving to refresh the creamy texture.
Variations & Tips
For a slightly lighter version, you can use reduced-fat cream cheese and 2% milk; the sauce will be a bit thinner but still very creamy.
If you like a touch of tang, stir in 2 to 3 tablespoons of sour cream or plain Greek yogurt at the end of cooking. For a more savory, less sweet profile, reduce the sugar to 2 tablespoons or swap it for honey or maple syrup.
Small bowls of mix-in options beside creamed corn
To add a little color and flavor, stir in a handful of chopped fresh chives, parsley, or green onions just before serving. For a cheesy twist, mix in 1/2 to 1 cup of shredded cheddar or Colby Jack after cooking and stir until melted. You can also use a mix of frozen corn and frozen corn with peppers for extra flavor and color.
If you’re making this for a holiday, assemble everything in the slow cooker insert the night before (corn, butter, cream cheese, sugar, milk), cover, and refrigerate; in the morning, place the insert into the slow cooker base and cook as directed, adding 30 minutes or so to the total cook time since it’s starting cold.