I love apple crisp and I have a great recipe but after it cools I can't seem to keep the top crisp. It always gets soggy. Does anyone have any suggestions, please?
Don't cover it!
Now that we know how to keep it crispy, how about the great recipe?
I'm thinking you are asking how to re-crisp the topping on a 2nd day, or something like that. I haven't worked on this problem, but it's the same theory as making popcorn, chips, or even cereal crispy again. Those items you spread thin on a cookie sheet and put in the oven for a few minutes 350 - 400 F. Or they can be put under a broiler for even a shorter period of time. The point is to take some of the moisture out of the topping.
I think my mom would cook the apple mixture for most of the time, then add the topping at the end; or else turn up the temperature right at the end to "crisp" the topping