The best way to keep leftover cobbler crispy is to store the crust separately from the filling. I know this isn't the most convenient way, but it'll keep the crust from absorbing too much moisture and becoming soggy. ‌ You can separate the two and store them in different containers, or you can actually cook the cobbler in two separate pans. Just bake the crust in one pan and add it to the filling when you're ready to serve. It might not be the most traditional way, but it'll ensure your cobbler is always nice and crispy!