3 medium Bosc or Anjou pears, peeled, cored, and sliced
3 large Granny Smith or Honeycrisp apples, peeled, cored, and sliced
1 tablespoon lemon juice
1/2 cup brown sugar (packed)
1 teaspoon ground cinnamon
1/2 teaspoon ground ginger
1/4 teaspoon ground nutmeg
1 cup old-fashioned rolled oats
3/4 cup all-purpose flour
1/2 cup chopped pecans or walnuts (optional)
1/2 cup cold unsalted butter, cubed
1/4 teaspoon salt
Instructions
Preheat your oven to 375°F (190°C). Lightly grease a 9×9 inch baking dish or a 2-quart casserole dish with butter or non-stick spray to prevent the fruit juices from sticking.
In a large mixing bowl, combine the sliced pears and apples. Drizzle with the lemon juice and toss gently to coat. Add 1/4 cup of the brown sugar, 1/2 teaspoon of cinnamon, the ginger, and the nutmeg. Toss again until the fruit is evenly seasoned, then spread the mixture into your prepared baking dish.
In another bowl, mix the rolled oats, flour, the remaining 1/4 cup of brown sugar, the remaining 1/2 teaspoon of cinnamon, salt, and chopped nuts if using. Add the cold, cubed butter. Use a pastry cutter or your fingers to work the butter into the dry ingredients until the mixture resembles coarse crumbs.
Sprinkle the oat topping evenly over the fruit layer in the baking dish. Do not press it down; keep it loose so the heat can circulate and create a crunchy texture.
Place the dish in the oven and bake for 40 to 45 minutes. The topping should be golden brown and the fruit filling should be bubbling around the edges. If the topping browns too quickly, cover it loosely with foil for the last 10 minutes.
Remove the crisp from the oven and let it stand for at least 10 to 15 minutes before serving. This allows the fruit juices to thicken slightly, making it easier to scoop.