Heat oven to 350.
Grease a 1 1/2 quart baking dish with the butter.
In a medium-large bowl, mix the filling ingredients until well-combined.
Scoop the filling ingredients into the greased dish.
Wipe out the filling bowl, then mix the topping ingredients until combined.
Evenly distribute the topping over the filling, then bake the crisp for 45 minutes, or until the apples are tender and the top is golden brown.
Cool until a safe temperature to eat.
Serve as is, or with non-dairy vanilla ice cream, vanilla yogurt, or lightly sweetened whipped coconut cream.