yesterday the the kitchen

Seems to be my life these days. One day in the garden, the next in the kitchen. I had Midge (aka Lily) my handy dandy assistant on hand to stir up our apple crisp. I most certainly did eat right out of the pan. Lily was sleeping and well, it seemed like the best way to enjoy some down time. Tired moms are lazy moms.
Here is my question for you: What is the difference between a cobbler, crisp and crumble? Lily informed me I had made a cumble - no 'r'. I've no idea about this.