Salted Caramel Cashew Cookies

Name: Salted Caramel Cashew Cookies
Prep time: 15 min
Cook time: 13 min
Total time: 28 min
Cuisine: American
Ingredients: 1 cup cake flour; 1 cup whole wheat pastry flour; 1/2 teaspoon baking soda; 1 teaspoon baking powder; 1/2 teaspoon fine sea salt; 4 ounces butter (softened); 1/2 cup packed brown sugar; 1/2 cup granulated sugar; 1 egg; 1 teaspoon pure vanilla extract; 2/3 cup caramel bits; 3/4 cup chopped cashews; Fleur de sel (for sprinkling on top)