Preheat your oven to 350°F (175°C) and grease a loaf pan.
In a large bowl, whisk together flour, cocoa powder, sugar, baking powder, and salt.
In another bowl, combine milk, oil, eggs, and vanilla extract.
Pour the wet ingredients into the dry ingredients and mix until just combined.
Fold in the chocolate chips gently to avoid overmixing.
Transfer the batter into the prepared loaf pan.
Smooth the top with a spatula for even baking.
Bake in the preheated oven for 50 minutes or until a toothpick comes out clean.
Let the bread cool in the pan for 10 minutes before transferring to a wire rack.
Slice and serve warm or at room temperature.