This cake, which was made following this recipe for Bitter Orange & Poppy Seed Cake, was a disaster on so many levels! It just shows that even a trusted source of recipes gives an occasional dud!
So what went wrong? Althought the cake rose well during baking, and a probe test came out clean, the cake sank dramatically as it cooled - that was an ominous start. When I took it out of the baking pan it had dropped so much that the sides were beginning to cave inwards. When I cut it, there was a really dense stodgy layer at the bottom - it would have been impossible to notice this with the usual probe test for being properly cooked. Baking911.com, my online bible, says the reason for this could be too much liquid or too many eggs - so a basic fault in the recipe.
The final problem was that the cake tasted of nothing in particular - it wasn't sweet enough and I couldn't taste the orange zest or the marmalade (I used a good quality marmalade, but a 'three fruit' flavour rather than orange, so perhaps that's my fault - an orange marmalade might have built up the orange flavour more). The poppy seed flavour wasn't very noticeable either, although they added their characteristic grittiness to the texture.
This cake will get eaten, as I can't abide waste - I think if it's warmed through in the microwave and served with some natural yogurt it might make a passable pudding - but I won't be trying the recipe again!