Tried Nigella's cherry almond loaf receipe. Checked it after 3/4 hour and skewer not clean so returned it to the oven for another 20 mins. Skewer came out clean in the centre of the loaf and left it in the tin on the rack to cook as instructed. Came back to it later to find a crack down the centre of the loaf and under the crust it had sunk and was clearly not cooked through.
So despite being in the oven longer than requested, and the skewer coming out clean, it was nowhere near cooked. Any ideas where I went wrong?