There are days when a full batch of cookies sounds wonderful, but shaping and baking several trays feels like too much work. That is where these chocolate chip cookie bars come in.
The dough is pressed into one pan, baked until the edges turn golden, and left slightly soft in the center. The result is a buttery dessert with a chewy middle, crisp corners, and melted chocolate in nearly every bite.
They are simple enough for an ordinary afternoon but still feel special when served warm with ice cream. Because the recipe uses one mixing bowl, cleanup stays pleasantly short.
Quick Recipe Info
- Prep Time: 10 minutes
- Cook Time: 22 minutes
- Total Time: 47 minutes
- Servings: 16 bars
- Difficulty: Easy
- Best For: Quick sweet cravings, parties, and family desserts
Why You’ll Love This Recipe
- Mixed in one bowl with no electric mixer required.
- No chilling or individual cookie shaping.
- Soft, chewy centers with lightly crisp edges.
- Easy to transport for picnics, parties, or bake sales.
- Simple to customize with nuts, candy pieces, or different chocolate.
Ingredients

- 1/2 cup unsalted butter, melted and cooled for 5 minutes
- 3/4 cup packed light brown sugar
- 1/4 cup granulated sugar
- 1 large egg, at room temperature
- 1 large egg yolk, at room temperature
- 2 teaspoons pure vanilla extract
- 1 1/2 cups all-purpose flour, spooned and leveled
- 1/2 teaspoon baking soda
- 1/2 teaspoon fine salt
- 1 cup semisweet chocolate chips, divided
- 1/2 cup chopped walnuts or pecans, optional
- 1/4 teaspoon flaky sea salt for topping, optional
How to Make It
- Prepare the pan: Preheat the oven to 350°F (175°C). Line an 8-inch square baking pan with parchment paper, leaving enough overhang on two sides to lift the bars out later.
- Mix the butter and sugars: In a large bowl, whisk the melted butter, brown sugar, and granulated sugar until the mixture looks smooth and glossy.
- Add the eggs and vanilla: Whisk in the egg, egg yolk, and vanilla until fully combined. The mixture should become slightly thicker.
- Add the dry ingredients: Add the flour, baking soda, and salt. Fold gently with a spatula just until no dry streaks remain.
- Fold in the chocolate: Fold in 3/4 cup of the chocolate chips and the chopped nuts, if using. Avoid overmixing.
- Fill the pan: Spread the dough evenly in the prepared pan. Press the remaining chocolate chips over the top and sprinkle with flaky sea salt if desired.
- Bake the bars: Bake for 20 to 24 minutes, until the edges are golden and the center looks set but still slightly soft. A toothpick inserted near the center should come out with moist crumbs rather than wet batter.
- Cool and slice: Let the bars cool in the pan for 15 minutes. Lift them out using the parchment paper and transfer to a wire rack. Slice into 16 squares once they are warm but firm enough to cut cleanly.

Tips for Best Results
- Let the melted butter cool briefly so it does not scramble the egg.
- Measure the flour by spooning it into the cup and leveling the top.
- Do not overmix after adding the flour, or the bars may become tough.
- Take the bars out while the center still looks slightly soft for a chewy texture.
- Use parchment overhang to lift the entire slab out of the pan cleanly.
- For neat slices, wipe the knife between cuts.
Variations and Substitutions
- Use dark chocolate chips for a richer, less sweet version.
- Replace half the chocolate chips with white chocolate or butterscotch chips.
- Add chopped walnuts, pecans, or toasted hazelnuts.
- Fold in colorful candy-coated chocolate pieces for parties.
- Add 1/2 teaspoon ground cinnamon for a warm flavor.
- Swirl a few spoonfuls of peanut butter over the dough before baking.
Serving Ideas
Serve the bars at room temperature or slightly warm. They are especially good with vanilla ice cream, whipped cream, cold milk, coffee, or hot chocolate.
Storage and Reheating
- Store completely cooled bars in an airtight container at room temperature for up to 4 days.
- Place parchment paper between layers to prevent sticking.
- Refrigerate for up to 1 week if you prefer a firmer texture.
- Freeze individual bars in a freezer-safe container for up to 2 months.
- Thaw at room temperature or warm briefly in the microwave before serving.
Soft Chocolate Chip Cookie Bars
Buttery, chewy cookie bars with warm vanilla flavor, crisp golden edges, and plenty of melted chocolate.
Prep Time: 10 minutes
Cook Time: 22 minutes
Total Time: 47 minutes
Servings: 16 bars
Ingredients
- 1/2 cup unsalted butter, melted and cooled for 5 minutes
- 3/4 cup packed light brown sugar
- 1/4 cup granulated sugar
- 1 large egg, at room temperature
- 1 large egg yolk, at room temperature
- 2 teaspoons pure vanilla extract
- 1 1/2 cups all-purpose flour, spooned and leveled
- 1/2 teaspoon baking soda
- 1/2 teaspoon fine salt
- 1 cup semisweet chocolate chips, divided
- 1/2 cup chopped walnuts or pecans, optional
- 1/4 teaspoon flaky sea salt for topping, optional
Instructions
- Prepare the pan: Preheat the oven to 350°F (175°C). Line an 8-inch square baking pan with parchment paper, leaving enough overhang on two sides to lift the bars out later.
- Mix the butter and sugars: In a large bowl, whisk the melted butter, brown sugar, and granulated sugar until the mixture looks smooth and glossy.
- Add the eggs and vanilla: Whisk in the egg, egg yolk, and vanilla until fully combined. The mixture should become slightly thicker.
- Add the dry ingredients: Add the flour, baking soda, and salt. Fold gently with a spatula just until no dry streaks remain.
- Fold in the chocolate: Fold in 3/4 cup of the chocolate chips and the chopped nuts, if using. Avoid overmixing.
- Fill the pan: Spread the dough evenly in the prepared pan. Press the remaining chocolate chips over the top and sprinkle with flaky sea salt if desired.
- Bake the bars: Bake for 20 to 24 minutes, until the edges are golden and the center looks set but still slightly soft. A toothpick inserted near the center should come out with moist crumbs rather than wet batter.
- Cool and slice: Let the bars cool in the pan for 15 minutes. Lift them out using the parchment paper and transfer to a wire rack. Slice into 16 squares once they are warm but firm enough to cut cleanly.
Notes
For the softest bars, remove them from the oven when the center is set but still looks slightly underbaked. They continue to firm as they cool.
FAQ
Why are my cookie bars dry?
Dry bars are usually caused by too much flour or overbaking. Measure the flour carefully and remove the pan when the center is set but still slightly soft.
Can I use a different pan size?
Yes, but the baking time will change. A larger pan makes thinner bars that bake faster, while a smaller or deeper pan may need more time.
Can I make these bars without nuts?
Yes. The nuts are optional and can be left out without changing the rest of the recipe.
Can I use milk chocolate chips?
Yes. Milk chocolate makes the bars sweeter, while dark chocolate gives them a deeper flavor.
How do I get clean slices?
Let the bars cool until they are firm, then use a sharp knife. Wipe the blade clean between cuts.
Can I freeze chocolate chip cookie bars?
Yes. Wrap the cooled bars individually or separate layers with parchment paper, then freeze them in an airtight container for up to 2 months.
These chocolate chip cookie bars are the kind of dessert that feels generous without asking much from the baker. A few everyday ingredients, one bowl, and one pan are all it takes to make a warm, chocolate-filled treat worth sharing.
