This recipe can be modified with similar ingredients. You can swap pears for the apples, switch up the spices, replace the walnuts with almonds or your favorite nuts. It can even be made gluten free and vegan by using GF flour and vegan butter.
Allow the crisp to cool at least 1 hour so the fruit juices can thicken and set before serving.
Serve warm with ice cream, whipped cream or even Greek yogurt.