01 - Preheat oven to 350°F and 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, beat softened butter, granulated sugar, and brown sugar until light and fluffy, about 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.
06 - Gently fold chocolate chips into dough until evenly distributed.
07 - Scoop tablespoon-sized dough balls onto prepared baking sheets, spacing 2 inches apart.
08 - Bake for 10-12 minutes until edges are golden brown while centers remain soft.
09 - Let cookies rest on baking sheet for 5 minutes, then transfer to wire rack to cool completely.