"Lemon explosion."  We were told to put this in our mouth all at once.  
The first impression I got of this dessert was the sound: inside my head I
heard what sounded like a crackling fire.  After quite a while the sound
began slowing down and I got the taste of melting chocolate, then a lemony
liquid flood.  It was almost alarmingly more liquid than I thought
could've come from the ball.  I realized I could make the crackling
stronger by swallowing and rotating.  In the end, I was left with pieces
of a crisp shell in my mouth, which I then bit and ate.