What causes a cake to have perfect texture on top half of layer and the bottom half looks thick and not crumbly

I have baked this and other cakes many times, and have had this happen only a few times. I would still like to know what causes it. Did I hurry the sugar, butter, egg mixing too much? Thank you for your help.

• Posted by: Nancy Roberts
• March 31, 2018

• 2115 views
• 1 Comment

• Baking
• cakes