Before you begin, preheat your oven to 350F. Be sure not to grease your baking sheet.
Grab a bowl and add the following ingredients: baking soda, cream of tartar, salt, and flour. Mix well and leave to one side.
In a separate bowl, add the butter, white sugar, and brown sugar. Beat the mixture until fluffy. Once fluffy, individually add the eggs; only add the next once the previous is completely combined.
Pour in your vanilla extract, as well as the bowl of dry ingredients from step one. Once mixed, fold in your semi-sweet chocolate chips.
Use an ice cream scoop to drop cookie dough onto your baking sheet; ensuring there is enough space for the cookies to spread.
Place in the center of your preheated oven and bake for around 10-12 minutes. Remove from oven and leave to cool slightly. Press chocolate chips on the top of the cookies, if desired. Leave to cool before serving. Serve and enjoy!