Yummy Caramel Sauce

2 2/3 c. packed brown sugar
1 c. corn syrup
1 cube butter
1 can sweetened condensed milk

In a large saucepan combine brown sugar and corn syrup and cook until it reaches a boil. Add the butter and cook until mixture reaches a boil and butter melts. Add the sweetened condensed milk and bring to a full boil for 1-2 minutes or longer if you want it to be more chewy or hard.