Salted Caramel "Ding Dong" Cake

I used the cake and ganache portions of this recipe only, replacing the filling with peanut butter ice cream. The ganache was terrific - chocolatey but I could definitely taste the salty caramel notes. I did panic when I added the cream because the whole thing seized up into a hard ball of caramel (not "bits" as the recipe suggests) but with continued stirring it finally broke up into a smooth sauce. The cake itself was very good but I was happy I followed other reviewers advice to take the cake out a little earlier. It was moist and not crumbly as some reviewers complained.