1. Preheat the oven to 180ºC.
2. Add the vanilla, sugar, brown sugar, eggs, and butter.
3. Add the flour, salt, and baking soda.
4. Mix until fully blended; add the milk to achieve a smoothly blended dough.After blending the mixture, add the chocolate chips.
5. Apply cooking spray to the pan so that the cookies won't stick to the baking pan. Alternatively, line the pan with baking paper.
6. Roll a small ball for each cookie.
7.Place the cookie balls on the baking pan.
8.Flatten each cookie with a fork. This will leave distinct ridges and flatten the cookie neatly.
9.Put cookies in the oven for about 8-10 minutes or until light golden brown.Don't overdo the cooking, as they'll continue to cook after you remove them from the oven.
10.Take the cookies out of the oven and let them sit on a wire cooling rack for about 15 minutes to cool. Be careful not to burn yourself on the melted chips when transferring the cookies to the rack - use a spatula. The cookies are ready to eat when the chocolate chips solidify again.
11. Store in an airtight container, or eat the cookies once they've cooled.