• 6 granny smith apples, cored and thinly sliced
• 1 1/2 teaspoons cinnamon
• 1/4 cup sugar
• 1 cup butter, melted
• 2 cups old-fashioned rolled oats
• 1 cup flour
• 1 cup brown sugar

Preheat the oven to 350F. In a small bowl, combine cinnamon and sugar. Place the apple slices in a 9×13 pan and sprinkle cinnamon sugar mixture on top, tossing to coat. In a medium bowl, combine the remaining ingredients and mix to form a crumble. Sprinkle the crumble over the apples and bake for 30-40 minutes at 350F.