Combine, butter, egg, vanilla, and cream cheese in a bowl. Mix together thoroughly.
Add cake mix, half of the box at a time, mixing until well combined.
Stir in chips and candies by hand.
Refrigerate for at least one hour and then roll dough into 1 inch balls.
Preheat oven to 350 degrees.
Place dough balls onto parchment lined baking sheet and bake for 9 minutes - you don't want the cookies to brown at all! Set a timer.
Let cookies cool on a baking sheet for several minutes before removing to a wire rack to cool completely.
Cookies can be stored in an airtight container for 4-5 days.
Makes 3 dozen cookies.