Caramel Dip for Sliced Apples

½ cup (1 stick) butter
1-1/2 cups packed brown sugar
¾ cup light corn syrup
1 can (14 ounces) sweetened condensed milk
1 teaspoon vanilla
¼ teaspoon ground cinnamon
Pinch salt
6 different types of snacking apples, cored and cut into 10 slices

Combine butter, sugar, corn syrup and milk in saucepan. Heat over medium heat, stirring to dissolve sugar, 5 minutes. Stir in vanilla, cinnamon and salt. Pour into dipping bowl. Serve with apples.