"It may look impressive (and daunting), but this classic Millionaire Shortbread recipe is insanely easy to bake at home. It starts with a perfect and simple buttery shortbread base. On top: a 2-ingredient caramel that starts with pre-made candies. To top it all off, a layer of decadent chocolate sprinkled with flaky sea salt...."
(2 sticks) butter, softened
granulated sugar
pure vanilla extract
all-purpose flour
kosher salt
(11-oz.) packages caramel squares
heavy cream
semisweet chocolate chips
Flaky sea salt, for garnish