Preheat oven 350 degrees. Line a 9x9 inch pan with foil and spray with cooking spray, (lining the pan with parchment paper would also work).
In a medium bowl, mix all of the ingredients together until well combined, (the batter will be thick like cookie dough). Spread the dough out with a spatula evenly in the pan. Sprinkle chocolate candy over top.
Bake the bars for 30 minutes, or until a toothpick comes out clean. Remove the pan from the oven and let them cool completely (at least 20 minutes) before cutting into them.