There are many different ways to make potato soup, but one of the most important decisions is what side to serve it with. Some people like to serve it with bacon or ham, while others prefer a simple side of bread. Ultimately, it comes down to personal preference. However, if you're looking for a suggestion, we recommend serving it with a side of rye bread. Rye bread pairs well with the flavors in potato soup and provides a nice crunchy contrast.