• Preheat oven to 350. Line an 11x7 inch pan or baking dish with foil and spray heavily with cooking spray.
• In a medium bowl whisk together flour, salt, and baking soda.
• In a large bowl combine butter, brown sugar, and sugar and mix until smooth. Add egg, egg yolk, and vanilla and mix again and until smooth.
• Mix dry ingredients into wet ingredients and mix until dough comes together. Stir in chocolate chips. Spread half of the dough into the prepared baking dish.

Prepare the caramel.

• Add butter and sugar to a medium sauce pan and stir until butter is completely melted. Add condensed milk and corn syrup and bring to a boil. Reduce to a simmer and whisk 6-8 minutes until mixture reaches a golden caramel color. Stir in vanilla and salt.
• Poor caramel into the pan over the cookie dough. Drop tablespoons of remaining dough onto the caramel until all of the cookie dough is used up. Bake for 30-40 minutes or until an inserted toothpick comes out mostly clean. If serving as bars, allow to cool completely before cutting into squares. If serving warm you can serve it after removing from oven, and top with ice cream.