How to Make It
Preheat your oven to 350°F (175°C).
Slice the apples and place them in a baking dish.
In a bowl, mix together the rolled oats, brown sugar, cinnamon, melted butter, and flour.
Sprinkle the oat mixture evenly over the apples.
Bake in the oven for about 25-30 minutes or until the topping is golden brown.
Serve
Serve warm, spooning the juicy apples and crunchy topping into bowls. A scoop of vanilla ice cream on top is always a good idea!