Waterfall Birthday Cake

My youngest son turned 4 last week. We had a backyard BBQ party for him this weekend. His cake request?

A waterfall

I started with 3 layers and realized it would be way too small for the 30 people coming, so I upped it to 5 layers. A 12in, a 9 in and three 6 in rounds.

It was big hit and the birthday boy loved it!