Preheat your oven to 375°F (190°C) and line a 12-cup muffin tin with paper liners.
In a large bowl whisk together the flour, sugar, baking powder, and salt.
Add the milk, Greek yogurt, vegetable oil, eggs, and vanilla, then stir everything together with a wooden spoon or a spatula.
Gently stir in the chocolate chips once everything is combined, just until they're distributed evenly throughout.
Portion the batter into the 12 muffin cups evenly and bake at 375°F (190°C) for 17-19 minutes or until the muffins are cooked through (test with a toothpick!) and are a light golden brown colour on top.
Let the muffins cool for several minutes and enjoy warm.
