Prepare the Crockpot: Start by greasing the inside of your crockpot lightly with butter or non-stick spray.
Toss the Apples: In a large mixing bowl, toss together the sliced apples with lemon juice, granulated sugar, ½ cup brown sugar, cinnamon, nutmeg, and salt.
Fill the Crockpot: Transfer the apple mixture into the greased crockpot, spreading it evenly across the bottom.
Make the Topping: In a separate bowl, mix together the rolled oats, all-purpose flour, ½ cup brown sugar, melted butter, and vanilla extract.
Layer the Topping: Sprinkle the oat topping evenly over the apples in the crockpot.
Cook and Relax: Cover the crockpot with its lid and cook on low for 3 to 4 hours.
Let it Rest: Once it’s cooked, carefully remove the lid and let the Apple Crisp sit for a few minutes to cool slightly before serving.
Serve and Enjoy: Dish up the warm Apple Crisp in bowls and top it with a scoop of vanilla ice cream or a drizzle of caramel sauce.
