Whisk together the flour, cocoa powder, baking soda and salt in one bowl.
In another bowl, cream the butter and sugar until light and fluffy.
Add eggs one at a time in the bowl with the butter and sugar.
Then take the ingredients from the other bowl and combine them and mix well.
Stir in the chocolate chips.
Grease a loaf pan and add the batter.
Bake for about 1 hour at 350 degrees.
Let it cool for 10 minutes.
Take out of the pan and slice it up to eat.