1cupChocolate Chipsor chocolate coins, or chocolate chunks
Instructions
Preheat your oven to 350°F (180°C). Line an 18cm (7-inch) baking dish with parchment paper, leaving a bit of overhang on the sides for easy removal.
In a medium bowl, whisk together the melted butter, brown sugar, granulated sugar, salt, and vanilla extract until well combined.
Add the egg yolks and mix until smooth.
Fold in the flour and baking soda using a spatula. Mix just until the flour disappears. Do not overmix.
Fold in ¾ of your chocolate chips or chunks.
Divide the dough into 6 equal portions. Flatten each piece slightly in your hand, place a few chocolate coins or large chunks in the center, and roll the dough back into a ball to seal the chocolate inside.
Place the 6 balls into your prepared baking dish. They should be placed close together so they merge as they bake, creating that signature scoopable texture.
Bake for 20 minutes. The edges should be golden brown, but the centers will still look soft and gooey.
Remove from the oven and sprinkle with flaky salt if desired. For the best experience, serve immediately while hot with a big scoop of vanilla ice cream!
Notes
The 80% Rule: Pull the dish when the edges are golden, but the center looks underdone. The hot pan will continue the "carryover bake" for 10 minutes on the counter.
The Insulation Seal: Ensure dough is tightly sealed around your chocolate centers. This "insulates" the chocolate, keeping it liquid while the outer cookie bakes.
Thermal Contrast: Wait 2 minutes before adding ice cream. This prevents it from melting instantly while ensuring the cookie is still hot enough to "scoop."
Emulsion Check: Whisk melted butter and sugar until the color lightens. This prevents a "greasy" bottom by properly bonding the fats.
Salt Layering: Use Kosher salt inside the dough and Flaky salt on top. The flakes provide a textural crunch that balances the molten center.