Ingredients
Equipment
Method
Prep and preheat
- Preheat oven to 375F and grease a 9x13 baking dish with a light coating so the crisp releases cleanly.
Make the apple filling
- Toss sliced apples with granulated sugar, brown sugar, cinnamon, nutmeg, cornstarch, and lemon juice until evenly coated.
- Spread the coated apples in the prepared baking dish in an even layer.
Make the oat crumble topping
- Combine rolled oats, all-purpose flour, brown sugar, cinnamon, and salt in a bowl.
- Cut the cold cubed butter into the dry mixture with a pastry cutter or your fingers until large, chunky clumps form.
Assemble and bake
- Scatter the crumble topping evenly over the apples without pressing it down so it bakes up crisp and craggy.
- Bake 40-45 minutes until the topping is deeply golden and the apple filling is bubbling around the edges, with visible caramelized bits.
Rest and serve
- Rest 10 minutes before serving warm so the filling thickens and the crumble stays crisp.
- Serve with vanilla ice cream beside each portion.
Notes
For best texture, use a mix of Granny Smith and Honeycrisp so the filling is tart-tender while the crumble stays crisp. Store covered in the refrigerator for up to 4 days; reheat individual portions in the oven or microwave. Freezing is not recommended because the topping can soften after thawing. For a lighter option, you can replace half the butter with cold coconut oil (same amount) while keeping the clumpy crumble method intact.
