Ingredients
Equipment
Method
Preheat and prepare the pan
- Preheat the oven to 375F and grease a 9x13 baking dish.
Make the apple filling
- Toss the sliced apples with granulated sugar, brown sugar, cinnamon, nutmeg, cornstarch, and lemon juice, then spread them in the prepared dish.
Make the oat crumble topping
- Combine rolled oats, all-purpose flour, packed brown sugar, cinnamon, and salt, then cut in the cold butter until large, chunky clumps form.
Assemble and bake
- Scatter the crumble evenly over the apples.
Bake until bubbling and deeply golden
- Bake for 40-45 minutes at 375F until the topping is deeply golden and the apple filling bubbles at the edges.
Rest and serve
- Rest for 10 minutes, then serve warm with vanilla ice cream.
Notes
For the best texture, use a mix of Granny Smith and Honeycrisp so the filling stays tender but not mushy. Refrigerate covered leftovers up to 4 days; rewarm in the oven at 325F until hot through. Freezing is not recommended because the oat topping can soften after thawing. If you want a lighter swap, use light butter or a 1:1 plant-based butter for the crumble while keeping the rest the same.
