Paula's recipe did not make enough topping for my cake. It was too thin, and covered the cake in an uneven and splotchy manner. Be sure to double the topping step, and you should be good to go or use bottled caramel. I used, ½ bottle Hershey Caramel topping (may be made from scratch, about 2 cups)
Be sure to let the cake cool completely before removing the sides of the pan, I'm never patient enough to wait...I cracked my cake but was able to save the look by adding the caramel sauce!