Preheat oven to 350F180C. Lightly grease a 9x5 or 8.5x4.5-inch loaf pan--the smaller pan will produce a higher dome and take the maximum baking time.

In a medium bowl, beat the butter, sugar, salt, vanilla, baking powder and cocoa. The mixture will look clumpy--this is OK

Add the eggs, 1 at a time, beating well after each addition. Scrape down the sides of the bowl.

Add half of the flour, beating at low speed. Then add all the milk, again beating at low speed. Add the rest of the flour, beating until well mixed.

Pour the batter into the prepared pan, sprinkle the top with the chocolate chips and bake for 60-70 minutes or until a toothpick inserted in the center comes out clean.

Remove the cake from the oven and loosen the edges then cool for 10 minutes then turn it out onto a rack to cool completely.