These chocolate chip sourdough cookie bars are a tasty blend of sweet and tangy. With gooey chocolate chips and a delightful chewy texture, they’re sure to please cookie lovers!
Making these bars is super fun! I love how the sourdough adds a special twist. A hint of sourness means more flavor, and I can’t resist sneaking a bite (or two) before serving! 😄
Key Ingredients & Substitutions
Butter: Unsalted butter adds richness without salt interference. If you need a dairy-free option, consider using coconut oil or a vegan butter substitute.
Sourdough Starter: This brings a unique tang to the cookies. If you don’t have one, you can substitute with 1/4 cup of plain yogurt or buttermilk to mimic the acidic flavor.
Flour: All-purpose flour is great for structure. For a gluten-free option, try a gluten-free 1:1 baking blend, which often works well in cookie recipes.
Chocolate Chips: Semi-sweet chocolate chips are classic, but you can use dark chocolate for a richer flavor or even milk chocolate if you prefer sweeter treats.
Flaky Sea Salt: This optional ingredient enhances the chocolate flavor. If you don’t have it, a sprinkle of regular table salt can work, but use it sparingly!
How Can I Ensure My Cookie Bars Don’t Turn Out Dry?
A key to keeping these cookie bars soft and chewy lies in mixing and baking. Be gentle when combining wet and dry ingredients, and do not overmix. Overmixing can develop gluten, creating a tougher texture.
- Mix until just combined, meaning some flour can still be visible.
- Keep an eye on the baking time; you want a slight jiggle in the center when it comes out of the oven. This helps them stay chewy as they cool.
- Let them cool completely in the pan. If you cut them too soon, they might crumble.
How to Make Chocolate Chip Sourdough Cookie Bars
Ingredients You’ll Need:
For the Cookie Bars:
- 1/2 cup (1 stick) unsalted butter, melted and slightly cooled
- 1 cup brown sugar, packed
- 1/4 cup granulated sugar
- 1/4 cup sourdough starter (active, unfed)
- 1 large egg
- 1 teaspoon vanilla extract
- 1 1/4 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 1/2 cups semi-sweet chocolate chips, plus extra for topping
- Flaky sea salt for sprinkling on top (optional)
- Additional melted chocolate for drizzling (optional)
How Much Time Will You Need?
You’ll need about 10 minutes for prep and 25-30 minutes for baking. After baking, let your cookie bars cool completely before cutting, which will take another 30 minutes or so. All in all, you can expect to spend about an hour and a half to get these delicious bars ready and cooled!
Step-by-Step Instructions:
1. Prepare Your Oven and Pan:
Start by preheating your oven to 350°F (175°C). Next, take an 8×8 inch baking pan and line it with parchment paper. Make sure to leave some overhang on the sides to help you lift the bars out later. This makes things so much easier!
2. Mix the Wet Ingredients:
In a large mixing bowl, combine the melted butter, brown sugar, and granulated sugar. Stir everything together until it’s smooth and all the sugar is well mixed in. This should only take a minute or two!
3. Add Sourdough Starter and Egg:
Now, add the sourdough starter, egg, and vanilla extract to your mixing bowl. Mix everything together well until it’s fully combined and creamy. This gives the bars their delicious flavor and texture!
4. Combine Dry Ingredients:
In a separate bowl, whisk together the flour, baking soda, and salt. This step is important to ensure that everything is evenly distributed in the final mix.
5. Mix Wet and Dry Ingredients:
Gradually add the dry ingredient mixture into the wet ingredients. Stir gently until everything is just combined. Be careful not to overmix; we want our cookie bars to stay lovely and tender!
6. Fold in Chocolate Chips:
Time for the best part! Fold in the chocolate chips evenly throughout the dough. Get creative here—save a few chips to sprinkle on top if you like a little extra chocolatey topping!
7. Spread the Dough in the Pan:
Transfer your cookie dough to the prepared baking pan. Use a spatula or the back of a spoon to spread it out evenly. This helps ensure that every bar bakes nicely.
8. Optional Toppings:
If you saved some chocolate chips, sprinkle them on top now. If you want, you can also sprinkle a bit of flaky sea salt for a touch of contrast. It really brings out the chocolate flavor!
9. Bake to Perfection:
Place the pan in your preheated oven and bake for 25-30 minutes. Keep an eye on them; the edges should be golden brown, and the center should be just set. A toothpick inserted should come out with a few moist crumbs—that’s how you know they’re perfect!
10. Cool the Bars:
Once your cookie bars are done baking, remove them from the oven and let them cool completely in the pan on a wire rack. This will take about 30 minutes, but patience is key!
11. Lift and Slice:
When the bars have cooled, use the parchment paper overhang to lift them out of the pan. Place them on a cutting board and slice them into squares. Enjoy the delicious smell wafting through your kitchen!
12. Drizzle and Decorate (Optional):
If you want to add a little extra indulgence, drizzle some melted chocolate over the top of your cookie bars. This step is optional, but it makes them look so pretty!
13. Serve and Store:
Serve your Chocolate Chip Sourdough Cookie Bars and enjoy! Any leftovers can be stored in an airtight container at room temperature for up to 4 days. Though we bet they won’t last that long!
Enjoy your rich, chewy Chocolate Chip Sourdough Cookie Bars with a perfect balance of tangy sourdough flavor and melty chocolate!
Can I Use A Different Type of Sugar?
Absolutely! You can use all brown sugar or all granulated sugar if you prefer. However, a mix gives the cookie bars a great balance of flavor and texture.
What If My Sourdough Starter Isn’t Active?
It’s best to use an active starter for the best flavor and texture. If yours isn’t active, feel free to feed it a few hours before using it in the recipe so it can rise and become bubbly. If that’s not possible, you can substitute with 1/4 cup of plain yogurt or buttermilk for a similar tang.
How Should I Store Leftover Cookie Bars?
Store the leftover cookie bars in an airtight container at room temperature for up to 4 days. If you want to keep them longer, you can freeze them in a single layer, then transfer to a freezer bag for up to 3 months. Thaw at room temperature when ready to enjoy!
Can I Add Nuts or Other Mix-Ins?
Definitely! Feel free to add chopped nuts like walnuts or pecans, or even other mix-ins like toffee bits or dried fruit. Just keep the total amount of add-ins to around 2 cups so the bars hold together well.