Preheat oven 350 degrees F. Line 9x9 inch baking dish with parchment paper and spray with cooking spray.
Make passion fruit caramel. Combine sugar and corn syrup in a heavy bottomed pot and heat over medium heat. Melt sugar until translucent, about 3 minutes, stirring occasionally. Continue to cook until mixture turns golden brown.
Remove from heat and add butter, stirring until butter is melted. Add heavy cream and passion fruit pulp, stirring until combined. Return pot to heat and continue to simmer for 4-5 minutes over medium-low heat until slightly thickened. Remove from heat and set aside. Caramel will continue to thicken as it cools.
Make cookie dough. Combine butter with both sugars in bowl of stand mixer. Beat together until light and fluffy, about 3 minutes. Add eggs one at a time, fully incorporating first egg before adding the next. Add vanilla and mix to combine.
Add flour, baking soda, and salt, mixing just until combined. Fold in 1 cup chocolate chips and nuts.
Pour half of cookie dough into prepared baking dish and spread in an even layer. Bake for 10-12 minutes or until set.
Remove cookie dough from oven and pour caramel on top, leaving a ½-inch border. Place dollops of remaining cookie dough on top, carefully spreading dough to cover as much as the caramel as you can. Sprinkle remaining ¼ cup chocolate chips on top.
Bake dessert bars for 20-25 minutes or until golden brown and set. Remove from oven and let cool for at least 1 hour. Slice into 9 bars and serve.