01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, baking soda, salt, and Vietnamese cinnamon. Set aside.
03 - In a large bowl, cream the softened butter, granulated sugar, and brown sugar until light and fluffy, about 2-3 minutes.
04 - Beat in the eggs one at a time, then mix in vanilla extract until fully incorporated.
05 - Gradually add the dry ingredients to the wet mixture, mixing just until combined. Do not overmix.
06 - Gently fold in the chocolate chips until evenly distributed throughout the dough.
07 - Scoop tablespoon-sized balls of dough onto the prepared baking sheets, spacing them about 2 inches apart.
08 - Bake for 10-12 minutes, until edges are golden but centers are still slightly soft.
09 - Let cookies cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.