Preheat your oven to 350°F (175°C).
In a medium bowl, whisk together the flour, baking soda, salt, and cinnamon (if using).
In a large bowl, cream the softened butter, granulated sugar, and brown sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.
Gradually add the dry mixture to the wet ingredients, mixing until just combined.
Gently fold in the chocolate chips until evenly distributed.
Scoop tablespoon-sized portions of cookie dough onto a lined baking sheet, spacing them about 2 inches apart.
Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden but the centers are still soft.
Remove from the oven and let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack.
Enjoy your cookies warm, and store any leftovers in an airtight container.