Add the corn kernels to the insert of a 6-quart slow cooker. Use the back of a butter knife to scrape the juice from the cobs and add to the slow cooker. Tie the thyme together with kitchen twine and add to the slow cooker along with the half-and-half, butter, cream cheese, garlic, 2 teaspoons salt and 1/2 teaspoon pepper. Cover with a lid and cook on low heat for 4 hours.
Turn off the heat, remove the lid and discard the thyme. Stir with a wooden spoon or rubber spatula until the mixture comes together. Cover with the lid and rest the creamed corn for 15 minutes. Serve topped with bacon and sliced scallions.
The creamed corn will look curdled right after cooking, but the dish will come together after it is stirred and rested.
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