Step 1

Place apples in large bowl, and pour the cinnamon sugar mixture over apples. Stir until all apples are evenly coated.

Step 2

Spray 4- to 5-quart slow cooker with cooking spray. Place apple mixture into slow cooker.

Step 3

In large bowl, mix all Topping ingredients except butter. Stir until well combined. Place butter pieces on top. Using fork or pastry blender, cut cold butter into mixture until crumbly. Sprinkle over apple mixture. Cover and cook on High heat setting 3 hours.

Step 4

Serve warm with a scoop of your favorite ice cream.