01 - Preheat oven to 375°F. Line a 12-cup muffin tin with paper liners or lightly grease.
02 - Whisk flour, sugar, salt, baking powder, and baking soda together in a large bowl.
03 - In a separate bowl, whisk eggs, milk, melted butter, and vanilla extract until smooth.
04 - Pour wet mixture into dry ingredients and gently fold until just combined; batter should remain slightly lumpy to avoid toughness.
05 - Fold in chocolate chips, reserving a few for optional topping.
06 - Spoon batter evenly into muffin cups, filling each about three-quarters full. Sprinkle additional chocolate chips atop if desired.
07 - Bake for 18 to 20 minutes, or until a toothpick inserted in the center emerges clean or with moist crumbs.
08 - Allow muffins to rest in pan for 5 minutes before transferring to a wire rack to cool completely.