Making trifle for someone as a surprise. It will be as I don't know how to make one. I got about 8 Sainsburys square-ish trifle sponges in a bowl, layered tinned fruit and syrup from said fruit on top. Made 2 pints of jelly (big bowl), left it to cool, it was a bit warm to be honest. Poured it in. Sponges floating on the top will not sink.
What did I do wrong? How can I get those sponges to sink? Bricks? So depressed this has cost me about a tenner getting all the ingredients and it already looks like a car crash with sponge.