With sour cream and cream cheese mixed in, these Crock Pot mashed potatoes are delicious, rich, and creamy. Thanks to the slow cooker, they are easy to make ahead and simply heat on the holiday morning - couldn't be easier!
In the meantime, sauté onion in a small skillet until onion is translucent. If you skip this step, the onions will be crunchy in your finished potatoes, and nobody wants crunchy potatoes.