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Best Spider Web Chocolate Chip Cookie Bars Recipe

spider web chocolate chip cookie bars - featured image

These spider web chocolate chip cookie bars are a simple, one-bowl recipe that looks way more impressive than the effort it takes. Perfect for Halloween parties, they feature a soft and chewy cookie base topped with a fudgy chocolate glaze and a spooky spider web design made with a toothpick.

Ingredients

Scale
  • 1 cup (2 sticks) unsalted butter, softened
  • 1 cup packed light brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs, room temperature
  • 2 teaspoons vanilla extract
  • 2 1/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 2 cups semisweet chocolate chips
  • 1 cup powdered sugar
  • 2 tablespoons milk
  • 1/2 teaspoon vanilla extract
  • 2 tablespoons unsweetened cocoa powder, sifted
  • 1 tablespoon melted butter

Instructions

  1. Preheat oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving overhang on the sides.
  2. In a large mixing bowl, beat the softened butter, brown sugar, and granulated sugar together on medium speed for about 3 minutes until light and fluffy.
  3. Beat in the eggs one at a time, ensuring each is fully incorporated. Add the vanilla and beat for another 30 seconds.
  4. In a separate bowl, whisk together the flour, baking soda, and salt. Add to the wet mixture in two additions, mixing on low speed until just combined.
  5. Fold in the chocolate chips with a spatula until evenly distributed.
  6. Transfer the dough to the prepared pan and press into an even layer.
  7. Bake for 20-25 minutes, until edges are golden brown and center is set but still soft. Cool completely in the pan on a wire rack.
  8. For the glaze: In a medium microwave-safe bowl, whisk together powdered sugar, milk, vanilla, cocoa powder, and melted butter. Microwave for 15 seconds and stir until smooth.
  9. Pour the chocolate glaze over the cooled bars and spread into an even layer. While still wet, drop small dollops of reserved white glaze (if set aside) in a spiral pattern. Drag a toothpick from the center outward through the dollops to create a web effect. Wipe the toothpick clean between lines.
  10. Let the glaze set at room temperature for about 30 minutes, or refrigerate for 15 minutes. Lift bars out using parchment overhang and cut into squares.

Notes

Let bars cool completely before adding glaze to avoid a muddy mess. For the spider web design, less is more; start with 5-6 dollops of white glaze. Use room temperature eggs to prevent butter from seizing. Parchment paper is essential for easy removal.

Nutrition

Keywords: spider web, chocolate chip, cookie bars, Halloween, easy, one-bowl, party treat