Ingredients
Equipment
Method
Prepare and preheat
- Preheat oven to 375°F and grease a 9x13 baking dish so the apples don’t stick.
Make apple filling
- Toss apple slices with granulated sugar, brown sugar, cinnamon, nutmeg, allspice, cornstarch, and lemon juice until evenly coated.
- Spread the coated apples in the prepared dish in an even layer.
Make rolled oat crumble
- Combine rolled oats, all-purpose flour, packed brown sugar, cinnamon, and salt in a mixing bowl.
- Cut in cold cubed unsalted butter with your fingertips until large chunks and clumps form.
Assemble and bake
- Scatter the crumble evenly over the apples, covering every surface.
- Bake for 40–45 minutes at 375°F until the oat topping is deeply golden and the apple filling is bubbling at the corners.
Finish and serve
- Cool for 10 minutes so the filling thickens slightly before serving.
- Serve warm with vanilla ice cream or whipped cream.
Notes
For the best crumble, keep the butter cold and stop mixing as soon as you get large clumps—overworking makes it bake up too fine. Store leftovers covered in the refrigerator for up to 4 days; reheat in a 300°F oven until warmed through. Freezing is not recommended because the oat topping can soften after thawing. For a lighter option, use half the sugar in the filling (or substitute a 1:1 brown sugar alternative) while keeping the crumble recipe the same.
