In a medium bowl, whisk together the flour, baking soda, baking powder, and salt until well combined.
In a separate large bowl, cream together the softened butter, granulated sugar, and brown sugar with an electric mixer until the mixture is fluffy and pale in color, about 2–3 minutes.
Add the egg and vanilla extract to the butter mixture, blending thoroughly.
Gradually incorporate the dry ingredients into the wet mixture until a smooth, pliable dough forms.