Apple crisp can be made ahead in part or in whole.u003cbr/u003eu003cstrongu003eu003cemu003eIn part:u003c/emu003eu003c/strongu003e Add a couple of tablespoons of lemon juice to your prepared apples before you top them with apple crisp topping and butter mixture. The lemon juice will keep the apples from turning brown. Set your prepared apple crisp aside on the counter until ready to bake. Put the apple crisp in the oven to bake just as you are serving dinner. And by the time dinner is over, this warm syrupy dessert will be ready.u003cbr/u003eu003cstrongu003eu003cemu003eIn whole:u003c/emu003eu003c/strongu003e Make ahead and reheat in the oven or microwave before serving.