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Sourdough chocolate chip cookie bars 2025 10 25 140802 150x150 1

Sourdough Chocolate Chip Cookie Bars

Delicious Sourdough Chocolate Chip Cookie Bars combine classic flavors with the tang of sourdough for a chewy, chocolatey treat perfect for any occasion.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Course Dessert, Snack
Cuisine American
Servings 12 bars
Calories 250 kcal

Ingredients
  

Wet Ingredients

  • 1 cup sourdough starter, unfed Make sure it's at room temperature for better mixing.
  • ¾ cup unsalted butter, melted
  • 1 cup brown sugar Packed.
  • ½ cup granulated sugar
  • 2 pieces eggs
  • 2 teaspoons vanilla extract

Dry Ingredients

  • 2 ¼ cups all-purpose flour Can be replaced with gluten-free flour.
  • 1 teaspoon baking soda
  • ½ teaspoon salt

Mix-Ins

  • 2 cups chocolate chips or chunks Feel free to swap with dried fruit or another type of chip.
  • 1 cup walnuts, chopped Optional, can be replaced with other nuts or omitted.

Instructions
 

Preparation

  • Preheat your oven to 350°F (175°C) and line a 9×13 inch baking pan with parchment paper.
  • In a large bowl, combine the melted butter, brown sugar, and granulated sugar until well mixed.
  • Add the eggs and vanilla extract, mixing until fully incorporated.
  • Stir in the sourdough starter.
  • In a separate bowl, whisk together the flour, baking soda, and salt.
  • Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
  • Fold in the chocolate chips and walnuts (if using).
  • Spread the batter evenly into the prepared baking pan.
  • Bake for 25-30 minutes or until a toothpick inserted into the center comes out clean.
  • Let cool in the pan for 10 minutes before lifting out and cutting into bars.

Notes

Store leftover bars in an airtight container at room temperature for up to 5 days or freeze for up to 3 months. Consider adding flavors like cinnamon or a sprinkle of sea salt for variation.
Keyword Baking, chocolate chip, Cookie Bars, Dessert, sourdough