Line 9x9 pan with parchment paper - lightly spritz with cooking spray - set aside
In medium sized glass bowl heat your chocolate chips in 30 second intervals, stirring in-between until completely melted & smooth.
Once melted- add in your rice krispie cereal & stir to completely coat
Transfer to prepared dish & smooth out
Top with chopped Kit Kat pieces
Refrigerate 2 hours to set
Allow to come close to room temperature before cutting
Store in airtight container at room temperature & use within 48 hours