Mix chocolate cake mix and pumpkin puree together until well combined. Add a cup of chocolate chips (reserving a few to top muffins prior to baking) and stir together.
Using a scoop, portion the batter into 12 lined (or greased) muffin wells. Top each with 2 -3 chocolate chips
Bake for 20 - 22 minutes. Bake until toothpick inserted in the center comes out clean.