In a bowl, combine the flour, baking cocoa, instant espresso powder, baking powder, and salt. Stir these together and set the bowl aside for now.
In your mixing bowl, combine the applesauce, extra virgin olive oil, sugars, and vanilla. Mix those together.
Add in the eggs, one at a time, mixing each in completely.
To your mixing bowl, add half of the flour mixture. Mix it in completely. Then pour in half of the milk, the remaining flour mixture, and remaining milk. Mix each in completely before adding the next.
Scrape around the bowl with a rubber scraper to be sure everything is mixed in. Add in the chocolate chips and stir to combine.
Scoop the batter out into 2 muffin pans that have been lined with papers. This will make 18 muffins.
Bake for 18-20 minutes, or until the muffins test done when tested with a wooden toothpick.
Carefully remove the hot muffins to a rack and let them cool. Serve these muffins warm or room temperature. Enjoy!