I like to think of myself as a pretty good cook but I am at a loss these last few times I have baked. I’ve tried these receipes before and they always look and taste amazing but lately, whatever I bake rises lovely in the oven, but when its cooling flop horribly down in the centre. At first I thought it was my baking powder (as it was expired), then I thought maybe my kiddies bumped the oven but the cakes still seem to flop. Am I overbeating the batter? Its with any cake I make, no matter the receipe, which leaves to me think its my methodology. The sides rise beautifully and the taste is still there.