Preheat oven to 350°F (175°C). Lightly butter or spray a 9x9-inch baking dish.
In a large bowl, mix apples with granulated sugar, brown sugar, cinnamon, nutmeg, allspice, lemon juice, and cornstarch until coated. Spread into baking dish.
In a medium bowl, combine oats, flour, brown sugar, granulated sugar, cinnamon, and salt. Add cold butter cubes. Cut in with a pastry blender (or fingertips) until coarse crumbs form. Stir in nuts if using.
Sprinkle topping evenly over the apple filling.
Bake 35–40 minutes, until topping is golden brown and filling is bubbling. Apples should be tender when pierced with a fork.
Cool 5–10 minutes before serving.
Serve warm, topped with vanilla ice cream and caramel sauce.
Notes
Chef’s Tips
Mixing apple varieties keeps the filling from being too sweet or too tart.
Always keep butter cold when making the topping — it ensures a crisp, crumbly texture.
If making ahead, assemble the filling and topping separately and combine just before baking.
Double the recipe in a 9x13 dish for potlucks or larger gatherings.
Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed.
Keyword apple crisp, apple crisp with ice cream, apple crisp with oats, easy apple recipe, fall dessert