Ingredients
For the Apple Filling:
- 6-8 medium apples (such as Honeycrisp, Granny Smith, or Gala), peeled, cored, and sliced
- 1/4 cup granulated sugar
- 2 tablespoons all-purpose flour
- 1 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- 1 tablespoon lemon juice
- 2 tablespoons butter, cut into small pieces
For the Oat Crisp Topping:
- 1 cup rolled oats (not instant)
- 3/4 cup all-purpose flour
- 3/4 cup packed brown sugar
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
- 1/2 cup (1 stick) cold unsalted butter, cut into small pieces
- 1/4 cup chopped pecans or walnuts (optional, but highly recommended!)
Let’s Talk Apples: Choosing the Right Variety
Okay, friend, let’s get real about apples. You can’t just grab any old apple and expect amazing results. The best Oat Apple Crisp starts with the right apple blend. I personally love using a combination of sweet and tart apples. Honeycrisp apples offer sweetness and hold their shape well. Granny Smith brings a much-needed tartness that balances out the sweetness of the topping. Gala apples are another great choice for their delicate sweetness. Feel free to experiment and find your perfect blend!Step-by-Step Instructions
Preparing the Apple Filling:
- Preheat your oven to 375°F (190°C). Lightly grease a 9×13 inch baking dish.
- In a large bowl, combine the sliced apples, granulated sugar, flour, cinnamon, nutmeg, and lemon juice. Toss everything together until the apples are evenly coated.
- Pour the apple mixture into the prepared baking dish and dot the top with the small pieces of butter.
Making the Oat Crisp Topping:
- In a separate bowl, whisk together the rolled oats, flour, brown sugar, baking powder, and salt.
- Cut in the cold butter using a pastry blender or your fingertips until the mixture resembles coarse crumbs. This is crucial for a perfectly crumbly topping! If the butter gets too warm, pop the bowl in the freezer for a few minutes.
- Stir in the chopped pecans or walnuts (if using).
- Sprinkle the oat topping evenly over the apple filling.
Baking the Oat Apple Crisp:
- Bake in the preheated oven for 30-35 minutes, or until the topping is golden brown and the apple filling is bubbly. If the topping starts to brown too quickly, you can loosely tent the dish with foil during the last 10-15 minutes of baking.
- Let the crisp cool slightly before serving. This will allow the filling to thicken up a bit.
Tips for the BEST Oat Crisp Topping
That golden, crumbly topping is what makes this Oat Apple Crisp truly irresistible. Here are a few tips to ensure yours is perfect every time:- Cold Butter is Key: Seriously, don’t skip this. Cold butter creates those lovely little pockets of fat that melt during baking, resulting in a tender, crumbly topping.
- Don’t Overmix: Overmixing the topping will develop the gluten in the flour, leading to a tough, chewy topping instead of a crumbly one. Mix just until the butter is incorporated.
- Add Nuts (But Don’t Have To!): I’m a HUGE fan of adding chopped pecans or walnuts to the topping for extra flavor and crunch. But if you’re not a nut person, feel free to leave them out.
- Brown Sugar Power: Brown sugar not only adds sweetness but also contributes to a slightly chewy texture and a rich, caramel-like flavor. Don’t skimp on it!
Serving Suggestions: Elevate Your Apple Crisp Game
While this Oat Apple Crisp is amazing on its own, a few simple additions can take it to the next level:- Vanilla Ice Cream: A classic pairing for a reason! The cold, creamy ice cream contrasts perfectly with the warm, gooey crisp.
- Caramel Sauce: Drizzle some caramel sauce over the top for an extra touch of indulgence.
- Whipped Cream: A dollop of freshly whipped cream adds a light and airy texture.
- Cheddar Cheese: Hear me out! A slice of sharp cheddar cheese alongside the warm crisp might sound strange, but the salty, savory cheese complements the sweet apple filling beautifully. Trust me on this one!
Make Ahead Tips and Storage
Want to get ahead of the game? You can assemble the Oat Apple Crisp a day in advance and store it, unbaked, in the refrigerator. Just add a few minutes to the baking time. Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, simply warm it in the oven or microwave until heated through.Variations: Let’s Get Creative!
- Add Other Fruits: Feel free to add other fruits to the apple filling, such as blueberries, raspberries, or cranberries.
- Spice It Up: Experiment with different spices, such as ginger, cardamom, or allspice.
- Gluten-Free Oat Apple Crisp: Use gluten-free all-purpose flour and make sure your oats are certified gluten-free.
- Vegan Oat Apple Crisp: Use vegan butter and make sure your sugar is vegan-friendly.
Other Apple Dessert Recipes to Try
If you’re in the mood for more apple-y goodness, be sure to check out these other delicious recipes: Apple Crisp Mini Cheesecakes, Apple Crumble Cheesecake, Apple Crisp, Apple Crisp Cheesecake, Homemade Apple Crisp, Cozy Apple Crisp, and Crunchy Apple Crisp. Each offers a unique take on this classic dessert!Troubleshooting Common Issues
- Topping is Too Dry: Add a tablespoon or two of melted butter to the topping and mix well.
- Topping is Too Brown: Tent the dish loosely with foil during the last 10-15 minutes of baking.
- Filling is Too Watery: Make sure you’re using enough flour to thicken the filling. You can also add a tablespoon of cornstarch.
- Apples are Still Crunchy: Make sure you’re using the right type of apples. Some apples are more prone to staying firm during baking. You may also need to bake the crisp for a longer period of time.
What are the best types of apples to use for the Oat Apple Crisp?
A combination of sweet and tart apples works best. Honeycrisp offers sweetness and holds its shape, Granny Smith brings tartness, and Gala apples add delicate sweetness. Experiment to find your perfect blend!
How can I prevent the oat topping from becoming too brown while baking?
If the topping starts to brown too quickly, you can loosely tent the dish with foil during the last 10-15 minutes of baking.
What can I do if my oat topping is too dry?
If your oat topping is too dry, add a tablespoon or two of melted butter to the topping and mix well.
Can I prepare the Oat Apple Crisp in advance?
Yes, you can assemble the Oat Apple Crisp a day in advance and store it, unbaked, in the refrigerator. Just add a few minutes to the baking time.

Best Oat Apple Crisp
Ingredients
Equipment
Method
- Preheat oven to 375°F (190°C). Lightly grease a 9×13 inch baking dish.
- In a large bowl, combine the sliced apples, granulated sugar, flour, cinnamon, nutmeg, and lemon juice. Toss until the apples are evenly coated.
- Pour the apple mixture into the prepared baking dish and dot the top with the small pieces of butter.
- In a separate bowl, whisk together the rolled oats, flour, brown sugar, baking powder, and salt.
- Cut in the cold butter using a pastry blender or your fingertips until the mixture resembles coarse crumbs. If the butter gets too warm, place the bowl in the freezer for a few minutes.
- Stir in the chopped pecans or walnuts (if using).
- Sprinkle the oat topping evenly over the apple filling.
- Bake in the preheated oven for 30-35 minutes, or until the topping is golden brown and the apple filling is bubbly. If the topping starts to brown too quickly, loosely tent the dish with foil during the last 10-15 minutes of baking.
- Let the crisp cool slightly before serving to allow the filling to thicken.