1 cup pecans
Cooking spray
1 8-ounce package cream cheese, at room temperature
1/4 cup granulated sugar
3 large eggs
1 1/2 teaspoons pure vanilla extract
1 1/2 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon fine salt
1 1/2 sticks (12 tablespoons) unsalted butter, melted
1 1/2 cups packed light brown sugar
3 tablespoons high-quality caramel sauce, plus more for topping
1/2 teaspoon fleur de sel