Ingredients
Method
- Whisk the flour, baking soda, cornstarch, and salt together in a large bowl until evenly combined.
- In a separate bowl, whisk the melted butter with the brown sugar and granulated sugar until smooth and glossy.
- Add the egg and extra yolk to the butter mixture and whisk until fully incorporated, then stir in the vanilla extract.
- Pour the wet mixture into the bowl of dry ingredients and gently stir until a thick, shiny dough forms.
- Fold the chocolate chips into the dough, distributing them as evenly as possible throughout.

- Cover the bowl tightly and refrigerate the dough for at least 2 hours to firm up and control spreading.
- Preheat the oven to 325°F (163°C) and line baking sheets with parchment paper or silicone mats.
- If the dough is very firm, let it rest at room temperature for about 15 minutes before shaping.
- Scoop portions of dough and roll into tall, slightly cylindrical shapes, then place them several inches apart on the prepared baking sheets.

- Bake until the edges are lightly golden and the centers appear soft, allowing the cookies to finish setting as they cool.

- Let the cookies cool on the baking sheet briefly, then transfer to a rack to cool completely, pressing extra chocolate chips on top if desired.
Nutrition
Notes
Caption-style recipe notes (MSI + emotional recall).
