Chocolate Chip Cookie

This recipe, inspired by famous versions (Toll House, Jacques Torres, Alton Brown), uses science and technique for a cookie with a crisp edge, a chewy center, and incredible flavor.

Prep Time: 20 mins + 24-72 hr chill (critical!) | Bake Time: 12-14 mins | Yield: 18-22 large cookies

Ingredients

• 1 cup (2 sticks, 227g) unsalted butter
• 1 ¼ cups (250g) dark brown sugar, packed
• ½ cup (100g) granulated sugar
• 2 large eggs + 1 egg yolk, cold
• 1 tbsp pure vanilla extract
• 3 cups (375g) all-purpose flour (spooned & leveled)
• 1 ½ tsp cornstarch
• 1 tsp baking soda
• 1 tsp baking powder
• 1 ½ tsp fine sea salt
• 2 cups (340g) high-quality semi-sweet chocolate chips or chopped bars (I like 60-70% cacao)
• Flaky sea salt for finishing (optional, but iconic)

Instructions (The Method Matters!)

1. Brown the Butter (The Flavor Bomb):

• Melt butter in a saucepan over medium heat. Swirl until it foams, turns golden, and releases a nutty aroma. Immediately pour into a heatproof bowl to stop cooking. Let cool for 10-15 minutes (should be warm, not hot).

2. Mix Sugars & Wet Ingredients:

• In a large bowl, whisk the warm brown butter, dark brown sugar, and granulated sugar for 1 minute. It will look gritty.
• Add the eggs, egg yolk, and vanilla. Whisk vigorously for 1 full minute until the mixture becomes smooth, glossy, and slightly paler.

3. Combine Dry Ingredients:

• In a separate bowl, whisk the flour, cornstarch, baking soda, baking powder, and salt.

4. Bring It Together:

• Fold the dry ingredients into the wet with a spatula until just combined and no dry flour remains.
• Fold in the chocolate chips. The dough will be soft.

5. The NON-NEGOTIABLE REST (Chill):

• Cover the dough and refrigerate for at least 24 hours, up to 72 hours. This:
  • Hydrates the flour for a better texture.
  • Deepens flavor (like marinating).
  • Prevents over-spreading.

6. Bake:

• Preheat oven to 350°F (175°C). Line baking sheets with parchment.
• Scoop dough into large balls (about 3 tbsp each). Place 4-5 on a sheet, spacing widely.
• Bake for 12-14 minutes, until edges are set and golden but centers still look soft and puffy.
• The Tap: For ultra-gooey centers, tap the baking sheet firmly on the counter the moment they come out of the oven. This deflates them slightly and creates those beautiful wrinkles.

7. Cool & Finish:

• Sprinkle immediately with flaky sea salt.
• Let cookies cool on the baking sheet for 10 full minutes—they continue to set. Then transfer to a wire rack.