Preheat oven to 325* or temperature on box mix.
Line cupcake tin with liners.
Fill liners evenly with brownie batter.
Bake for 20 minutes and check for doneness. (Brownies take less time to bake in cups.)
Allow brownies to cool.
Make caramel frosting by melting the butter and brown sugar in a medium saucepan. Stir until bubbly and smooth - about 2 minutes. Continue stirring for an extra minute, then add the cream. Continue stirring, remove from the heat, and stir in the powdered sugar and vanilla until smooth.
Poke a small hole in the top of each brownie cup, and fill with caramel frosting.
Put an extra spoonful of the caramel on top, and sprinkle some salt on the caramel.
Serve and Enjoy!