My son wanted a Lego Birthday Cake for his 6th birthday. After looking around I was inspired by a fondant Lego cake I saw online. Our design is comprised of 6 large (4″x8″)Lego blocks and 3 small (4″x4″) Lego blocks. The blocks fit together to form a large ‘G’ when looking down at it (my son’s first initial).
The cake was a modified chocolate cake mix (from a box). We added pudding and an extra egg to the mix so it would be dense enough for the fondant. This worked fabulously. The fondant was made from marshmallows and powdered sugar. The “dots” on top of the cake are cut out of thick fondant. We brushed water over the finished cake to get the plastic sheen. This took a long time to dry. But it was a convincing effect.