Preheat oven to 350°F.
Cream together the butter, granulated sugar and molasses.
Add the egg and vanilla. Mix until creamy.
Add in the dry ingredients (flour, baking soda and salt), mix into the dough. Mix until completely combined. The dough will be soft.
Fold in the chocolate chips.
Scoop or roll the cookie dough out into equal sized balls. I like to use 3 tbsp of dough for a generous sized cookie. If looking for a smaller cookie, use 1 1/2 tbsp of dough.
Arrange on a cookie sheet. Add extra chocolate chips to the top if desired
For smaller cookies, bake at 350° for 7-9 minutes or until the edges are starting to turn golden brown. For large cookies, 9-11 minutes.
Allow the cookies to cool completely on the pan.
Store in an airtight container for up to 4 days or in the freezer for up to 3 months.