Apple Crisp with Oatmeal in 9x13 Pan: Easy & Delicious

Apple crisp with oatmeal baked in a 9×13-inch pan is a comforting dessert that combines tender, cinnamon-spiced apples with a crunchy, nutty topping. Its straightforward preparation and warm, inviting flavors make it a perfect treat for family gatherings, holiday dinners, or a cozy weekend dessert. This recipe yields a generous dish, ideal for feeding a crowd or enjoying leftovers throughout the week.

Ingredients

6 large apples (such as Granny Smith, Fuji, or Honeycrisp), peeled, cored, and sliced
1 tablespoon lemon juice
1/2 cup granulated sugar
1 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg (optional)
1/4 teaspoon salt
1 tablespoon cornstarch (for thickening)
1 cup old-fashioned rolled oats
1/2 cup packed light brown sugar
1/2 cup all-purpose flour
1/2 cup unsalted butter, cold and cubed
1/2 cup chopped nuts (walnuts or pecans, optional)

Instructions

Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter or non-stick spray to prevent sticking.

In a large mixing bowl, combine the sliced apples with lemon juice, granulated sugar, cinnamon, nutmeg (if using), salt, and cornstarch. Toss until the apples are evenly coated.
Pour the apple mixture into the prepared baking dish, spreading it out evenly.
In a separate bowl, prepare the oat topping by combining the rolled oats, brown sugar, flour, and chopped nuts (if using). Mix well.

Add the cold, cubed butter to the oat mixture. Use a pastry cutter, two forks, or your fingers to cut the butter into the dry ingredients until the mixture resembles coarse crumbs.
Sprinkle the oat topping evenly over the apples in the baking dish, ensuring full coverage.
Bake in the preheated oven for 40-45 minutes, or until the topping is golden brown and the apples are bubbling around the edges.

Remove from oven and let cool slightly for about 10 minutes before serving. This allows the juices to thicken and makes serving easier.

Tips

Substitute different types of apples based on desired sweetness or tartness; mixing varieties can add complexity.
For a vegan version, replace butter with coconut oil or vegan butter.

If you prefer a softer topping, add a tablespoon of oats to the butter before mixing, creating a more crumbly texture.
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave for best results.

Serving Suggestions

Serve warm apple crisp topped with a scoop of vanilla ice cream or a dollop of whipped cream for an extra indulgence. A drizzle of caramel sauce can also enhance the flavors. For a lighter option, pair it with a dollop of Greek yogurt and a sprinkle of cinnamon.

Variations

Spiced Apple Cranberry Crisp: Add 1/2 cup fresh or dried cranberries to the apple mixture for a tart contrast.
Vegan Apple Crisp: Use coconut oil instead of butter and ensure the oats and nuts are vegan-friendly.
Nut-Free Version: Omit the nuts or substitute with sunflower seeds for crunch.

Gluten-Free Apple Crisp: Replace all-purpose flour with a gluten-free flour blend and check oats for gluten-free certification.

Storage and Reheating

Leftover apple crisp can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place in a preheated 350°F (175°C) oven for about 10-15 minutes until warmed through and the topping is crispy again. Alternatively, microwave individual servings for 1-2 minutes, but the crispiness may be less pronounced.

Frequently Asked Questions

Can I prepare this apple crisp ahead of time?

Yes, you can assemble the apple filling and topping separately, cover, and refrigerate for up to 24 hours. Assemble and bake just before serving to ensure the topping remains crisp.

Can I freeze apple crisp?

Absolutely. To freeze, assemble the unbaked crisp in a freezer-safe dish, wrap tightly with plastic wrap and foil, and store for up to 3 months. When ready to bake, thaw overnight in the refrigerator and bake at 350°F for 45-50 minutes until bubbling and golden.

How do I prevent the topping from becoming soggy?

Using cold butter and ensuring it’s cut into the dry ingredients thoroughly helps create a crispy topping. Also, avoid overloading the apples with excess liquid—adding cornstarch helps thicken the juices during baking.

Can I use other fruits instead of apples?

Yes, this recipe works well with pears, peaches, or berries. Adjust the sweetener and cooking time accordingly, as different fruits may release varying amounts of juice and have different textures.

What makes this apple crisp so easy to make?

The simple combination of sliced apples and a quick oat topping eliminates complicated steps. The ingredients are common pantry staples, and the baking process is straightforward, making it accessible for beginner bakers.

Apple Crisp with Oatmeal in 9×13 Pan: Easy & Delicious