Press foil into a 9x13" pan and spray with non stick cooking spray. Set aside.

Cook and stir corn syrup, sugar, and salt in a large pot over medium heat until mixture begins to boil.

Remove from heat and stir in the peanut butter and vanilla.

Stir in oats and cereals. Press mixture into the prepared pan.

Let bars cool for a few minutes. Use the foil to remove the bars from the pan. Cut into squares.

Melt chocolate at half power in a glass bowl in the microwave, stirring often.

Place melted chocolate in a ziplock bag. Snip a small hole in the corner and drizzle chocolate over the bars.

Serve immediately or let sit for a couple hours until the chocolate is set.