Why Did My Cake Sink. The most common reason why cakes sink in the middle is that theyre underbaked. To avoid a sunken cake you need to resist the urge to open the oven door a long time before the cake is cooked.
This gives your cake layer a doughy dense texture in the middle. The most common reason why cakes sink in the middle is that theyre underbaked. The resultant cake will usually have overbaked borders and be runny in the centre.
Why did my cake sink around the edges.
Also make sure that you are measuring the raising agents carefully use a proper measuing spoon as too much can cause the cake to rise very high and very quickly but with a weak structure so it will sink. Even something simple such as forgetting to add an egg or not measuring the flour correctly can cause the cake to sink. On the other hand if the cake isnt fully baked through the centre doesnt have a chance to set and it will sink also. If the cake batter sits around too long before being baked then again the raising agents will finish working before the cake is baked and the centre will sink back.