Roast Beef & Yorkshire Pudding

The beef was rare, the gravy was rich, the spuds crisped, but for some reason my usually fail-safe yorkshire was a bit claggy. It had fluffed up loads and was starting to burn at the edges, but didn't look cooked enough in the middle. I didn't want it to burn more so took it out, but now realise I should have left it in.