Buttermilk Hangop with Caramel Sauce

A very old-fashioned Dutch recipe, and truly delicious. You will need more buttermilk than for yoghurt hangop, just because buttermilk is thinner and therefore more of it will drain away. Buttermilk hangop has a totally different structure from yoghurt hangop, it looks more like custard. This dish used to be eaten topped with crumbled bread crust, but this is no longer the case. I replace it with crunchy almond biscuits, but gingersnaps also fit the bill.