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Chewy Chocolate Chip Cookies

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These chewy chocolate chip cookies are ultra-soft, thick, and bakery-style, made with melted butter, extra brown sugar, cornstarch, and an additional egg yolk for that perfect chewy texture—all without a mixer.

  • Author: Sophia
  • Prep Time: 15 minutes
  • Cook Time: 13 minutes
  • Total Time: 2 hours 45 minutes
  • Yield: About 16 XL cookies or 20 medium-large cookies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

2¼ cups all-purpose flour

1 teaspoon baking soda

1½ teaspoons cornstarch

½ teaspoon salt

¾ cup unsalted butter, melted and cooled for 5 minutes

¾ cup packed light or dark brown sugar

½ cup granulated sugar

1 large egg + 1 egg yolk, at room temperature

2 teaspoons pure vanilla extract

1¼ cups semi-sweet chocolate chips or chunks

Instructions

  1. Whisk together flour, baking soda, cornstarch, and salt; set aside.
  2. Stir melted butter into sugars until smooth; add egg, egg yolk, and vanilla; mix until fully incorporated.
  3. Gradually add dry ingredients, stirring until just combined, then fold in chocolate chips.
  4. Cover dough and chill for at least 2–3 hours or up to 3 days.
  5. Preheat oven to 350°F. Scoop dough into tall, lumpy balls—about 3 tablespoons for XL cookies or 2 heaping tablespoons for medium-large.
  6. Bake until edges are lightly golden, about 13 minutes. Let cool slightly before transferring to a wire rack.

Notes

  • Swap in white chocolate chips, nuts, M&Ms, or dried fruit as mix-ins (keep total add-ins around 1 to 1¼ cups).
  • Sprinkle flaky sea salt on top before baking for a salted twist.
  • Browning the butter adds a nutty depth to the flavor.

Nutrition