Salted Caramel Butter Bars

I saw this recipe and made it just a few days later. These bars are amazing! Like you will want to eat the entire pan of them! The next week my husband asked me to make them for a little party they were having at his office, that's how good they are! This recipe is from The Domestic Rebel.

2 cups unsalted butter (softened)
1 cup white sugar
1 1/2 cups powdered sugar
1 tbsp vanilla extract
4 cups all-purpose flour + 2 tbsp
1 jar  Trader Joe's Fleur de Sel (or any other salted caramel sauce)
Sea salt

Heat oven to 325.  Line a 9x13 pan with foil and grease well.  In a stand mixer using a paddle attachment cream together the butter and white sugar until light and fluffy.  Mix in the powdered sugar and vanilla extract.  Add in the 4 cups of flour one cup at a time until it is all combined. Press half of the mixture into the bottom of the pan and bake for 15 minutes. Meanwhile whisk 2 tablespoons of flour into the salted caramel sauce.  When the crust comes out of the oven pour the salted caramel sauce evenly over the crust. Crumble the remaining dough over the salted caramel sauce. Sprinkle with a pinch of sea salt.  Bake for 25 to 30 minute or until golden brown and the caramel is bubbling. Remove from oven and cool before cutting.