Preheat your oven to 350°F and line a 9x5 loaf pan with parchment paper, set aside.
In a large bowl whisk your flour, cocoa powder, salt, baking soda and baking powder and set aside.
Mix together oil and both sugars for about 5 mins. on med-high speed.
Add in your eggs and vanilla and mix for another 2-3 mins.
Now with mixer on low speed add in your bowl of dry ingredients and mix until just combined.Fold in your chocolate chips.
Pour batter into prepared loaf pan and bake for 45-50 mins. until tooth inserted toothpick comes out with few crumbs.
Remove from oven and leave in pan to cool for 10 mins before transferring to cool rack.
For Chocolate Glaze
Take your butter and chocolate chips and microwave at 15 seconds increments until melted and smooth.
Sift in your powdered sugar and mix, it will be thick.Add you hot water mix until you get the consistency you're looking for; thinner add more water, thick add more powdered sugar.
Pour glaze over warm loaf and spread with spatula.
Notes
Make sure you don't compact flour, just scoop in and level off. You don't want a dense loafGlaze is optional you can sprinkle just powdered sugar if you like or leave it plain. This loaf keeps well covered on counter for 2 days or covered in fridge for 5 days. You can also freeze entire loaf without glaze. Or freeze individual slices wrapped in plastic wrap and placed in zip lock bag. Again minus the glaze you can add glaze once it's defrosted if you like.