Christmas puddings, suet puddings and sponge puddings fit into this category. In fact, anything boiled or steamed in a basin, cloth or handy piece of intestinal tract is a pudding: black pudding, white pudding, steak & kidney pudding, pease pudding and haggis are the ones that immediately spring to mind. So far, so good.
Link: https://britishfoodhistory.com/2011/11/15/what-is-a-pudding/