Raclette Cheese is from Switzerland and is similar in texture and flavor to Gruyere cheese. This semi-hard cow's milk cheese is the traditional use for raclette is for use in a dish by the same name. The cheese is melted using a special apparatus that softens the cheese which is then scraped onto plates and served with potatoes, cornichons and dark bread.
Use the link above to learn more about how to prepare traditional Raclette.
French Raclette is produced in France in the Comte region. It is used the same way as is the Swiss version which is for serving the dish, Raclette. You can substitute the Swiss for the French version, or vice versa.
If you are already a cheese maker, of just adventurous, you may want to try this recipe for making Raclette cheese at home.
Look for Raclette in a good cheese shop or Whole Foods Market. You can purchase it online from reliable sellers at Amazon.com: Raclette Cheese.