Preheat oven:

Heat the oven to 430°F (220°C), or 390°F (200°C) if using a fan-assisted oven.

Prepare loaf pan:

Butter a 9x5-inch (22x13 cm) loaf pan and line with parchment paper, allowing extra to hang over the sides for easy removal.

Mix dry ingredients:

In a bowl, whisk together the flour, baking powder, salt, and sugar until evenly distributed.

Create well, add wet:

Create a depression in the center of the dry mix, then add the oil and milk.

Stir until combined:

Stir until the flour is completely absorbed; the mixture will be thick yet stirrable.

Pour batter into pan:

Pour the batter into the prepared pan, smoothing the top with a spatula and scraping the bowl clean.

Bake 30 min, cover:

Bake for 30 minutes, then take the loaf out and cover it with aluminum foil.

Reduce temp, bake more:

Reduce the oven temperature to 390°F (200°C), or 360°F (180°C) for fan ovens, and bake for another 20 minutes.

Rest in pan:

Remove the pan from the oven and let it rest in the pan for 5 minutes.

Lift out to rack:

Using the parchment overhang, lift the bread out and transfer it to a wire rack.

Cool completely:

Let the bread cool fully, at least 45 minutes, before slicing.