Preheat your oven to 350˚F, and prep an 11"x17" pan.

In a large bowl whip the butter, sugar and vanilla together. Add in the malted milk powder, and egg, and beat well.

Stir in the flour and salt, mixing only until it is just combined.

Pour half of the batter into the prepared baking dish. Next add a layer of kit kats over the batter. Making sure to eat a few for your self.

Pour the remaining batter over the layer of kit kats. Last take about 4 or 5 kit kats roughly chop them and sprinkle them over the top.

Place the pan in the oven and bake for about 35-40 minutes. Allow to cool completely and cut into squares.