Tips and Variations:

• Use a mix of apple varieties for a more complex flavor profile.
• Add a splash of vanilla extract or a pinch of nutmeg to the apple filling for extra depth.
• Substitute chopped nuts or chocolate chips for some of the oats in the crumble topping for added texture and flavor.
• Make the crumble topping ahead of time and store it in an airtight container in the fridge for up to 2 days.
• Try using different spices, such as cardamom or allspice, to give the apple crumbler a unique flavor.

Enjoy your delicious homemade apple crumbler!