Preheat oven to 350°F.
In a large mixing bowl, combine the cream cheese, sour cream, sauerkraut, corned beef, ketchup, and mustard. Add half of the shredded Cooper® Sharp cheese.
Place the mixture into an ovenproof dish and sprinkle the top with remaining cheese. Heat in the oven for 25 minutes or until the cheese is nice and bubbly.
Turn on the broiler for 2-3 minutes to brown the top.
Serve warm with toasted rye bread squares.
*Consuming raw or undercooked meats, poultry, seafood, shellfish, or eggs may increase your risk of foodborne illness.