The Best Apple Crisp

Preheat your oven to 375°F (190°C). Grease a 9x9-inch or similar 2-quart baking dish. In a large bowl, combine the sliced apples, granulated sugar, 1 tablespoon flour, 1 teaspoon cinnamon, nutmeg, and lemon juice. Toss until the apples are evenly coated. Trust me, the lemon juice is crucial—it brightens the flavor and prevents browning.

Transfer the apple mixture to the prepared baking dish, spreading it into an even layer. Set aside while you make the topping. This brief rest allows the apples to start releasing their juices, which will create a lovely sauce as it bakes.

In a medium bowl, whisk together the oats, 3/4 cup flour, brown sugar, 1/2 teaspoon cinnamon, and salt. Add the cold, cubed butter. Using your fingers, a pastry cutter, or two forks, work the butter into the dry ingredients until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining. Tip from me: Keeping the butter cold is the secret to a crisp, not soggy, topping.

Sprinkle the oat topping evenly over the apples, covering them completely. Do not press it down. Place the baking dish on a rimmed baking sheet to catch any potential bubble-overs. Bake in the preheated oven for 40-45 minutes.

Bake until the topping is a deep golden brown and the filling is bubbling vigorously around the edges. You should see thick, syrupy bubbles. Remove from the oven and let it cool on a wire rack for at least 20 minutes before serving. This rest time allows the juices to thicken slightly.