The two teen jidhadis are on trial for blowing up a Sikh temple in Essen
Letters written from one to the other while in prison revealed the plot
One bomber worked as an ice cream man and plotted to poison his goods
He also suggested crashing a van into the kindergarten or hiding a bomb
He wanted to 'rape the girls of the enemies of the Prophet Muhammad'
The gruesome plan came to light during hearings of two teenage Islamic State fanatics who blew up a Sikh temple in the industrial city of Essen during wedding celebrations.
Mohammed O, 17, one of the temple bombers who carried out the assault in April which wounded four people, planned to sell the toxic ices before blowing himself up in the midst of the children.
A second teen, Yusuf T, 17, was the leader of the so-called Temple bomber group.
The young Salafists first formed their murder gang on Whatsapp and built bombs from ingredients ordered from online retailer Amazon.