Preheat and prep
Preheat your oven to 175°C / 350°F. Line a baking sheet with parchment paper. This is future-you insurance.
Mix butter and sugars
In one large bowl, whisk melted butter, brown sugar, and white sugar until smooth and glossy. It should look rich and slightly thick.
Add eggs and vanilla
Whisk in the egg, egg yolk, and vanilla. Mix until fully combined. At this point, it should smell dangerously good.
Add dry ingredients
Sprinkle in flour, baking soda, and salt. Stir gently until just combined. Stop as soon as you don’t see dry flour. Overmixing is the villain here.
Fold in chocolate
Add chocolate chips and fold them in evenly. Sneak a few extra on top if you’re smart.
Scoop and space
Scoop dough into balls (about 2 tablespoons each). Place them on the baking sheet with room to spread—cookies need boundaries.
Bake
Bake for 10–12 minutes until the edges are lightly golden and the centers look slightly underdone. That’s the magic moment.
Cool briefly (or not)
Let cookies rest on the pan for 5 minutes, then transfer to a rack. Or eat one warm and live your truth.