Ingredients
Wet ingredients:
- 1 cup (226 grams) salted butter, sliced
- 1 ½ cups (320 grams) packed dark brown sugar
- ¼ cup (50 grams) granulated sugar
- 1 large egg plus 1 large egg yolk, at room temperature
- 1 tablespoon vanilla extract
- 1 tablespoon plain whole-milk Greek yogurt
Dry ingredients:
- 2 ¼ cups (270 grams) all-purpose flour
- 1 teaspoon baking soda
- ½ teaspoon kosher salt
- ¾ cup (135 grams) semisweet chocolate chips
- ¾ cup (135 grams) milk or dark chocolate chips or chunks
Other:
- Flaky sea salt (such as Maldon) for sprinkling
Instructions
- Prepare baking sheet: Line a large plate or baking sheet with parchment paper to hold and bake the cookies.
- Brown the butter: Melt the butter in a small saucepan over medium heat. Whisk constantly as it melts; it will crackle and foam. After 5 to 8 minutes, the butter will turn a golden amber color and emit a nutty aroma. Immediately remove from heat and transfer the butter and browned bits into a medium bowl. Let cool until just warm, about 15 minutes.
- Mix wet ingredients: In the bowl of a stand mixer fitted with a paddle attachment, combine the cooled browned butter, dark brown sugar, and granulated sugar. Mix on medium speed until well combined, about 1 minute. Add the egg, egg yolk, vanilla extract, and Greek yogurt. Beat until the mixture is smooth, creamy, and caramel-like in appearance, about 1 minute. This can also be done using a whisk.
- Prepare dry ingredients: In a separate large bowl, whisk together the all-purpose flour, baking soda, and kosher salt until evenly distributed.
- Combine wet and dry ingredients: With the mixer on low speed, slowly add the dry mixture to the wet ingredients. Mix just until combined, about 1 minute. Add both kinds of chocolate chips and mix on low speed until just incorporated. Avoid overmixing.
- Chill dough balls: Using a medium cookie scoop or spoon, measure 2 heaping tablespoons of dough. Roll into balls with your hands and place on the prepared plate or baking sheet. Cover loosely with plastic wrap and refrigerate for a minimum of 2 hours and up to 24 hours. Chilling allows flavors to meld and improves texture.
- Preheat oven: About 15 minutes before baking, preheat the oven to 350°F (175°C) and place a rack in the middle. Line a large baking sheet with parchment paper.
- Prepare dough for baking: Remove dough balls from the fridge and let soften for 15 minutes at room temperature. Arrange dough balls 2 inches apart on the prepared baking sheet. Depending on size, you may need multiple batches.
- Bake the cookies: Bake for 9 to 11 minutes until cookie edges just begin to turn golden brown. The centers will look slightly underdone but will firm up as they cool.
- Cool and finish: Let cookies cool on the baking sheet for 5 minutes to set. Sprinkle each cookie with flaky sea salt while warm. Transfer cookies to a wire rack to cool completely.
- Store: Once cooled, store cookies in an airtight container or reusable silicone bag at room temperature for up to one week. For longer storage, freeze for up to 3 months.
Notes
- Chilling the dough is essential for flavor development and to achieve the perfect chewy texture with crispy edges.
- Using two types of chocolate chips adds depth and texture to the cookies.
- Flaky sea salt sprinkled on top enhances the sweetness and balances flavors.
- Butter should be browned carefully to avoid burning; watch for the nutty aroma as a key indicator.
- Letting the dough soften slightly before baking ensures even baking and prevents cracking.
- Prep Time: 2 hours 30 minutes
- Cook Time: 10 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian