B lack currant chiffon cake was what I made recently .......yes, with black currant jam. Being my first attempt at making a chiffon cake with jam, I was initially worried about the end result, whether the cake will collapse, etc. So I kept a close watch on the baking process and constantly checked on the progress during baking. I heaved a big sigh of relief when I saw it rose beautifully in the oven and more pleased when it didn't collapse at the sides upon inverting!