One-Bowl Classic Chocolate Chip Cookie Bars

By · Reviewed by AislePrompt Editorial · ·

Soft and chewy chocolate chip cookie bars made in one bowl, delivering all the flavor of cookies with less fuss. This american-inspired desserts ready in about 43 minutes layers all-purpose flour, unsalted butter, melted, brown sugar, packed into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 180 calories and feeds 24, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 28 min Serves 24 American cuisine 180 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat the oven to 350°F and grease a 9x13-inch baking pan.
  2. Step 2: In a large mixing bowl, whisk together 1 cup melted unsalted butter, 1 cup packed brown sugar, and 1/2 cup granulated sugar until smooth and combined.
  3. Step 3: Beat in 2 large eggs and 2 tsp vanilla extract until fully incorporated and slightly fluffy.
  4. Step 4: In a separate bowl, whisk 2 1/4 cups all-purpose flour, 1 tsp baking soda, and 1/2 tsp salt.
  5. Step 5: Gradually add the dry ingredients to the wet ingredients, stirring just until combined without overmixing.
  6. Step 6: Fold in 2 cups semisweet chocolate chips evenly throughout the batter.
  7. Step 7: Spread the batter evenly into the prepared baking pan and bake for 25-28 minutes until the edges are golden and a toothpick inserted near the center comes out with moist crumbs.
  8. Step 8: Allow the cookie bars to cool completely in the pan on a wire rack before cutting into 24 squares.

Equipment for this recipe

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Frequently asked questions

How long does One-Bowl Classic Chocolate Chip Cookie Bars take to make?

Total time is about 43 minutes (15 min prep + 28 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover One-Bowl Classic Chocolate Chip Cookie Bars?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in One-Bowl Classic Chocolate Chip Cookie Bars?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale One-Bowl Classic Chocolate Chip Cookie Bars for a different number of people?

The recipe is written for 24 servings. Multiply each ingredient by (your serving target / 24). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with One-Bowl Classic Chocolate Chip Cookie Bars?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.