1 pound sharp processed cheese, cubed
1 (8 ounce) package cream cheese, softened
1 large onion, sliced
2 (10 ounce) cans condensed chicken broth
salt to taste
1/2 cup packed brown sugar
1 cup shredded mozzarella cheese
Preheat the broiler.
Place cheese into a large mixing bowl and smooth with a fork. Spread cream cheese mixture evenly over cheese. Spoon brown sugar over cream cheese. Top with shredded cheese.
Broil in broiler for 10 to 15 minutes. Serve hot or cold.