Creamy Macaroni and Cheese

5 cups macaroni shells, uncooked
5 cups milk
3 cups cheddar cheese, shredded
1 tsp salt
1/4 c heavy cream

In a large saucepan combine milk and pasta. Heat til simmering and then 15-20 minutes longer over low-medium heat. Remove from heat and add cheese, cream and salt. Stir until cheese is melted and everything is well combined. Serve.