Preheat oven to 350 degrees.
Combine cake mix, eggs, and oil in large mixing bowl, and beat well.
Stir in Reese's peanut butter cups and baking chips with spoon.
Chill dough in refrigerator for 1 hour.
After dough has chilled, drop onto ungreased nonstick Cookie Sheet or parchment paper in rounded balls.
Bake for approx. 7 – 9 minutes until done.