Chocolate Chip Muffins

* 1 cup all-purpose flour

* 1/2 cup granulated sugar

* 1/2 teaspoon baking powder

* 1/4 teaspoon baking soda

* 1/4 teaspoon salt

* 1/2 cup melted butter

* 1 egg

* 1/2 cup milk

* 1 teaspoon vanilla extract

* 1/2 cup chocolate chips

* Preheat oven to 350°F (175°C). Grease a muffin tin.

* In a large bowl, whisk together flour, sugar, baking powder, baking soda, and salt.

* In a separate bowl, combine melted butter, egg, milk, and vanilla extract.

* Gradually add wet ingredients to dry ingredients, mixing until just combined.

* Stir in chocolate chips.

* Fill muffin cups with batter.

* Bake for 18-20 minutes, or until a toothpick inserted into the center comes out clean.

* Let cool in pan for 5 minutes before transferring to a wire rack to cool completely.

Enjoy your delicious chocolate chip muffins!