Butterscotch Yams

2 cans yams (17oz.each), well drained
1/2 cup white Karo syrup (corn syrup)
1/2 cup firmly packed brown sugar
1/4 cup heavy cream
2 tablespoons butter
1/2 teaspoon salt
1/2 teaspoon cinnamon

Place yams in a 9x13-inch baking dish.

Bake at 325F for 15 minutes. In saucepan, mix remaining ingredients.

Bring to a boil, stirring constantly; boil 5 minutes.