Decoration: I used whole After Eights along with several cut into small pieces. I gently pushed the whole ones into the ganache then quickly popped the cake into the freezer so that the chocolates wouldn't topple over. When they were set in place, I sprinkled the remaining bits of After Eights all over the top. Place in the fridge for several hours (or overnight), remove the spring-form sides, and serve chilled. Enjoy!
Disclaimer: I measure my ingredients in grams. To help my American readers, I have converted grams to cups using online resources. However, these measurements have not been verified by me and might not be totally accurate.