Preheat oven to 350 degrees F.
Grease 8" square baking pan.
Bake on middle rack of oven for 30 minutes. Check with a toothpick or knife to make sure it comes out clean.
While cake is still hot, use a knife or fork to poke holes all over top of the cake. Heat caramel slightly for easy pouring and drizzle over the cake, spreading out to cover the entire top. Let cool completely. Frost with your favorite buttercream frosting.