-
Preheat the oven to 375°F. Lightly grease two baking sheets, or line with parchment.
-
Beat together the butter, sugars, vanilla, salt, baking powder, and baking soda till well combined and lightened in color.
-
Add the egg, beating till smooth. Scrape the sides of the bowl, and beat again till smooth.
-
Add the flour, mixing it in completely.
-
If you're making cookies using chips, nuts, etc, beat in the milk, then the add-ins. If you're making plain cookies, without add-ins, omit the milk.
-
Drop the cookies by the generous tablespoon onto the prepared baking sheets, spacing them about 2" apart. A tablespoon cookie scoop works well here.
-
Bake the cookies for 10 to 14 minutes (or up to 16 minutes; ovens may vary). The cookies should be a light golden brown, and a bit darker around the edges. For softer cookies, bake the shorter amount of time; for crunchy cookies, bake longer.
-
Remove the cookies from the oven, and cool right on the baking sheets.
-
Store these chocolate chip cookies airtight at room temperature for several days. Freeze for longer storage.