Baking Soda

Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a medium bowl, whisk together the flour, baking soda, and salt until fully combined. Set aside.
In a large mixing bowl, beat the softened butter and granulated sugar together with an electric mixer on medium speed until light and fluffy, about 2-3 minutes.
Add the egg and vanilla extract to the butter mixture and beat until smooth and fully incorporated.
Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Avoid overmixing.
Pour in the milk and mix gently until the batter is smooth and uniform in texture.
Drop rounded tablespoons of dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden. Let cool on the baking sheet for 5 minutes before transferring to a wire rack.