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