Preheat oven to 350°F. Cover baking sheets with parchment paper. Set aside. Combine cake mix, melted butter, egg, water and vanilla in large bowl with wooden spoon until blended. Add in chocolate chips and mix. Batter will be thick. Using 2 tbs cookie scoop, scoop cookie dough onto parchment covered baking sheets. Bake 10 to 12 minutes or until set. Cool cookies 1 minute on pan. Cool completely on wire rack.

Melt the candy melts in a microwave safe bowl in 30 second increments making sure to stir the candy in between each time in the microwave. When candy is melted and cookies are cool dip each cookie about halfway in the melted candy melts, gently shake off excess candy and place on parchment paper. Sprinkle with Halloween sprinkles. Allow candy to harden then eat and enjoy.