Breakfast

Mix flour, chocolate chips, sugar, cocoa, baking powder, and salt in a mixing bowl.
Create a well in the center of the dry ingredients.
Beat the egg in a small bowl.
Add milk, cooking oil, and vanilla to the beaten egg and stir to combine.
Pour the wet mixture into the well and stir until just moistened.
Grease 12 muffin cups with cooking spray and fill each about 3/4 full with batter.
Bake at 400°F for 20 minutes, until a skewer inserted into the center tests clean.
This recipe is adapted from Wikibooks. It is licensed under Creative Commons Attribution-ShareAlike 4.0 International.