Preheat the oven to 325 degrees F.
Grease a 9 x 5-inch loaf pan and set aside.
In a mixing bowl, whisk the flour, cocoa powder, baking powder, baking soda, and salt. Mix well.
Add ½ cup of the mini chocolate chips. Mix so they are coated with the dry mixture. Set aside.
In a large mixing bowl, whisk the oil and eggs.
Add the granulated sugar and mix well.
Add half of the dry mixture to the egg mixture. Mix until all ingredients are incorporated.
Add the milk and vanilla extract. Mix well.
Add the remaining dry mixture. Mix until all the flour is incorporated. DON’T OVERMIX!
Add the water and mix until incorporate incorporated.
Pour the batter into the prepared loaf pan and spread evenly.
Sprinkle the remaining ¼ cup of chocolate chips on top of the batter, don’t mix.
Bake in the preheated oven for 50 to 60 minutes or until the toothpick is free of batter when inserted in the middle.