Preheat the oven to 350°F and grease a 1-pound loaf pan.
In a medium bowl, whisk together sugar, flour, baking powder, and salt until well combined.
In a large bowl or stand mixer, beat the egg, milk, and vegetable oil until mixed.
Gradually add the dry ingredients to the wet ingredients, stirring until just combined.
Fold in most of the chocolate chips, reserving ¼ cup for topping.
Pour the batter into the prepared loaf pan, filling it about two-thirds full.
Sprinkle the remaining chocolate chips on top.
Bake in the center of the oven for 50-60 minutes, or until a toothpick inserted in the center comes out clean.
Allow the bread to cool for 10 minutes before slicing and serving.