This was from Country Living. The reader says the combination of caramel and sea salt gives this childhood treat a grown-up flavor. I'm going to make this for my co-workers and will give you an update in September on how they liked it.
Liberally oil a large mixing bowl and a 9-by-13 inch baking dish. Place cereal in bowl and set it and dish aside.
In a medium saucepan over medium-high heat, combine corn syrup, condensed milk, sugars, butter and sea salt. Allow mixture to come to a boil, while stirring continuously until a light golden brown, 5 to 6 minutes.
Remove mixture from heat, stir in vanilla, and immediately pour over cereal. Stir to completely mix, and then evenly spread in prepared baking pan.
Set aside to let cool, about 45 minutes. Invert and release from pan. Drizzle with melted chocolate and refrigerate until set, about 15 minutes. Cut into 16 bars.