This is a test of commonsense. Complete the next sentence:

How to make edible chocolate chip cookie dough 
Combine the butter, brown sugar, vanilla, and salt. 
In a large bowl pour the softened butter, brown sugar, vanilla extract, and salt. Use a spatula or mixer to combine them thoroughly.
Pour the one tablespoon of milk in and stir again. Then add the flour, only adding one tablespoon at a time, while mixing properly.