Can free breakfasts for all primary pupils really be delivered for £60m?

Update, 24 May 2017, 13:14: Schools Week have reported that the Conservatives are distancing themselves from the £60m figure. One of the more eye-catching proposals in the Conservatives’ manifesto was the plan to drop universal infant free schools meals (UIFSMs) and bring in free breakfasts for all primary pupils [PDF]. While no further details were [...]