Preheat the oven to 425°F (220°C). Grease a 12-cup muffin tin with non-stick cooking spray.
In a large bowl, mix together the flour, baking powder and salt.
In another bowl whisk together the eggs and sugar. Add the milk, oil, vanilla extract and mix until well combined.
Fold the wet ingredients into the dry ingredients and mix everything together with a wooden spoon or spatula until just combined. Avoid overmixing.
Fold in the chocolate chips.
Fill the muffin pans with the batter all the way to the top bake at 425°F (220°C) for 5 minutes. Reduce the oven temperature to 375°F (190°C) and continue to bake for another 15-20 minutes or until the tops are lightly golden and a toothpick inserted in the center comes out clean.
Remove from the oven and let the bakery-style chocolate chip muffins cool for a few minutes before serving.