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Best Easy Chocolate Chip Cookie Bars Recipe (One Bowl)

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These one-bowl chocolate chip cookie bars are perfectly chewy, buttery, and loaded with chocolate chips. No mixer required, no chilling needed, and ready in about 35 minutes — the ultimate easy dessert for any occasion.

Ingredients

Scale
  • ½ cup (1 stick) unsalted butter, melted
  • 1 cup packed brown sugar (light or dark)
  • ¼ cup granulated sugar
  • 1 large egg + 1 egg yolk, room temperature
  • 2 teaspoons pure vanilla extract
  • 1¾ cups all-purpose flour, spooned and leveled
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • 1½ cups semi-sweet chocolate chips (or milk/dark chocolate)
  • Optional: flaky sea salt for sprinkling

Instructions

  1. Preheat the oven to 350°F (175°C). Position the rack in the center. Line an 8×8-inch baking pan with parchment paper, leaving overhang on two opposite sides.
  2. In a large microwave-safe bowl, melt the butter in 20-second increments until fully melted. Let cool for 2-3 minutes until warm, not hot.
  3. Add the brown sugar and granulated sugar to the melted butter. Stir vigorously with a wooden spoon or spatula until smooth and glossy, about 30 seconds.
  4. Add the whole egg, egg yolk, and vanilla extract. Stir until well combined and the mixture looks smooth and slightly thickened, about 30-40 seconds.
  5. Sprinkle the flour, baking soda, and salt over the wet mixture. Stir gently until just combined — a few streaks of flour are okay. Do not over-mix.
  6. Fold in the chocolate chips with a few gentle strokes. Reserve about 2 tablespoons of chips to sprinkle on top.
  7. Scrape the dough into the prepared pan. Press it evenly into the corners using a spatula or lightly greased fingers. Sprinkle reserved chips on top and press in gently.
  8. Bake for 22-26 minutes. The edges should be golden brown and set, and the center should look slightly puffed and just barely set — it will jiggle slightly when shaken. A toothpick inserted in the center should come out with a few moist crumbs.
  9. Place the pan on a cooling rack and let cool for at least 15-20 minutes to set properly.
  10. Using the parchment paper handles, lift the slab out of the pan and transfer to a cutting board. Cut into 9 or 16 squares with a sharp knife, wiping the knife between slices for clean cuts.

Notes

For clean cuts, let bars cool completely (at least 20 minutes, ideally 1 hour). Bars can be stored in an airtight container at room temperature for up to 5 days. Freeze individual bars wrapped in plastic wrap for up to 3 months. For extra flavor, toast chocolate chips at 300°F for 5-7 minutes before adding. If using a 9×13-inch pan, reduce bake time to 15-18 minutes.

Nutrition

Keywords: chocolate chip cookie bars, easy cookie bars, one bowl cookie bars, no chill cookie bars, chewy cookie bars, chocolate chip bars, quick dessert

Find it online: https://bakebeam.com/best-easy-chocolate-chip-cookie-bars-recipe-one-bowl/