One-Bowl Chocolate Chip Cookie Bars with Brown Butter
Soft and chewy chocolate chip cookie bars made easy with nutty brown butter and a single bowl. This American-inspired recipe, ready in about 35 minutes, layers unsalted butter, light brown sugar, granulated sugar 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 220 calories and feeds 9, 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.
Ingredients
- 6 tbsp unsalted butter
- 3/4 cup light brown sugar
- 1/4 cup granulated sugar
- 1 large egg
- 1 tsp vanilla extract
- 1 cup all-purpose flour
- 1/2 tsp baking soda
- 1/4 tsp salt
- 3/4 cup semisweet chocolate chips
The bakeware we’d bake this in → Best Bakeware Sets in 2026: Top Picks + Buying Guide
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Equipment for this recipe
Tools this recipe's steps call for, with a link to each on Amazon.
Instructions
- Step 1: Preheat oven to 350°F and line an 8x8-inch baking pan with parchment paper, leaving overhang for easy removal. In a medium saucepan, melt 6 tbsp unsalted butter over medium heat, stirring frequently until it foams and turns golden brown with a nutty aroma, about 5 minutes; immediately remove from heat.
- Step 2: Transfer the brown butter to a large mixing bowl and whisk in 3/4 cup light brown sugar and 1/4 cup granulated sugar until combined. Add 1 large egg and 1 tsp vanilla extract, whisking until smooth.
- Step 3: Stir in 1 cup all-purpose flour, 1/2 tsp baking soda, and 1/4 tsp salt until just combined. Fold in 3/4 cup semisweet chocolate chips evenly.
- Step 4: Spread the batter evenly into the prepared pan with a spatula and bake for 22-25 minutes until golden brown on the edges and a toothpick inserted in the center comes out with a few moist crumbs.
- Step 5: Remove from oven and cool completely in the pan on a wire rack before slicing into bars.








