If you like Puff Wheat Squares, you are going to love these.
I got the recipe from http://www.mennonitegirlscancook.ca/2009/10/ooey-gooey-chocolatey-puff-wheat-squares.html and modified it slightly. This version uses 2 cups less puffed wheat and substitutes in 2 cups of corn flakes. You can do it either way.
8 cups puffed wheat
2 cups Corn Flakes
1/2 cup butter
1/4 cup brown sugar
1 cup corn syrup
1 cup white sugar
6 tablespoons cocoa
1 teaspoon vanilla extract
Combine butter, corn syrup, sugars and cocoa powder in a heavy saucepan.
Bring to a boil. (Very important)
Remove from heat and add vanilla.
Pour over puffed wheat
Mix well and press into a greased 9 x 13 pan.