There’s nothing quite like a warm, comforting bowl of apple crisp on a crisp autumn evening, and this gluten-free version is absolutely divine. This recipe has been perfected over years of testing, and I’m thrilled to share it with you today. The beauty of this dessert lies in its simplicity – tender, cinnamon-spiced apples topped with a buttery, crunchy oat topping that’s completely free of gluten.
I first developed this recipe when my sister went gluten-free, and I refused to let her miss out on my famous apple crisp. After countless batches and ingredient swaps, I discovered that the secret to the best gluten-free apple crisp is using a combination of gluten-free oats and almond flour in the topping. This creates that perfect texture – crispy on the outside, slightly chewy in the middle – that everyone craves.
What makes this recipe truly special is how accessible it is. You likely have most of these ingredients in your pantry right now. The apples are lightly sweetened with brown sugar and vanilla, allowing their natural flavor to shine through, while the topping delivers those satisfying bursts of butter and brown sugar that make this dessert so irresistible. If you love apples, you’ll also enjoy our classic apple pie recipe, though this crisp is much easier to prepare.
One of the best things about making apple crisp is that it’s forgiving. Whether you’re using Granny Smith apples for tartness or a mix of varieties, the result will be delicious. The gluten-free oats have become so good in recent years that even those who don’t need to avoid gluten often prefer them in their crisps. For more gluten-free baking tips, check out our comprehensive guide.
This recipe serves 8-10 people and is perfect for potlucks, family dinners, or simply treating yourself to a cozy dessert. It’s also wonderful because you can make it ahead – assemble it the morning of, refrigerate, and bake when you’re ready. Serve it warm with vanilla ice cream or a dollop of whipped cream for the ultimate comfort food experience.
I love how this recipe brings people together. Gluten-free guests no longer have to watch from the sidelines while everyone else enjoys dessert. This crisp proves that gluten-free baking can be just as delicious, if not more so, than traditional versions. For more dessert inspiration, browse our full collection. Trust me, once you make this apple crisp, it will become a regular in your rotation. Bon Appétit also has wonderful variations on this classic, and I encourage you to explore different approaches to find your favorite.
Ingredients
- 6 pounds (about 8-10 medium) apples, peeled, cored, and sliced about ¼-inch thick
- ¼ cup granulated sugar
- ¼ cup packed brown sugar
- 1 tablespoon fresh lemon juice
- 1 teaspoon vanilla extract
- ½ teaspoon ground cinnamon
- ¼ teaspoon ground nutmeg
- ¼ teaspoon fine sea salt
- 1 tablespoon cornstarch (or 2 tablespoons for a thicker filling)
- 1½ cups certified gluten-free rolled oats
- ¾ cup packed brown sugar
- ½ cup almond flour
- ¼ cup coconut flour
- ½ teaspoon ground cinnamon
- ¼ teaspoon fine sea salt
- 12 tablespoons (1½ sticks) cold unsalted butter, cut into small cubes
- ½ cup sliced almonds (optional, for extra crunch)
- 2 tablespoons honey or maple syrup
Instructions
- Preheat your oven to 375°F and position a rack in the center. Lightly butter a 9×13-inch baking dish (or similar 3-quart capacity dish) and set aside.
- In a large bowl, combine the sliced apples with the granulated sugar, ¼ cup brown sugar, lemon juice, vanilla extract, cinnamon, nutmeg, and sea salt. Toss gently until all the apples are evenly coated with the sugar mixture.
- Sprinkle the cornstarch over the apples and fold gently to combine, making sure the cornstarch is distributed throughout. This will help thicken the filling as the apples bake and release their juices.
- Transfer the apple mixture to the prepared baking dish, spreading it out in an even layer. If some of the liquid pools at the bottom, that’s perfectly normal and will create a lovely sauce.
- In a separate medium bowl, combine the gluten-free rolled oats, ¾ cup brown sugar, almond flour, coconut flour, cinnamon, and sea salt. Whisk together until well combined.
- Add the cold butter cubes to the dry mixture and use your fingertips to work the butter into the flour mixture until it resembles coarse breadcrumbs with some pea-sized pieces of butter remaining. This creates the crispy texture.
- If you’re using sliced almonds, gently fold them into the topping mixture along with the honey or maple syrup for extra richness and binding.
- Sprinkle the topping evenly over the apple filling, distributing it all the way to the edges. Don’t pack it down – a loose topping will be crispier.
- Place the baking dish on a baking sheet (to catch any drips) and transfer to the preheated oven. Bake for 45-50 minutes, until the topping is golden brown and the apple filling bubbles around the edges.
- Remove from the oven and let the crisp rest for 10-15 minutes before serving. This allows the filling to set slightly, making it easier to serve and enjoy.
- Serve warm with vanilla ice cream, whipped cream, or a dollop of Greek yogurt. The crisp can be refrigerated for up to 3 days and reheated gently in a 300°F oven before serving.
Pro Tips
- **Apple Selection**: Use a mix of apple varieties for the most complex flavor. Granny Smith apples provide tartness, while Honeycrisp or Gala apples add sweetness. A 50/50 mix is ideal, though you can use any combination you prefer.
- **Gluten-Free Oats**: Always use certified gluten-free oats to avoid cross-contamination, even if you’re not extremely sensitive. Regular oats may contain traces of gluten from processing.
- **Make-Ahead Instructions**: Assemble the crisp up to 8 hours ahead, cover with plastic wrap, and refrigerate. Add 5-10 minutes to the baking time if baking from cold. You can also freeze the unbaked crisp for up to 3 months – thaw in the refrigerator overnight before baking.
- **Topping Variations**: For a nuttier flavor, substitute half of the almond flour with finely chopped pecans or walnuts. Add ½ teaspoon of vanilla extract to the topping for extra depth.
- **Dairy-Free Option**: Replace the butter with dairy-free butter or coconut oil in equal amounts. The texture will be slightly different but still delicious.
- **Thickening the Filling**: If your apples release a lot of liquid (which can happen with very juicy varieties), increase the cornstarch to 2 tablespoons. Conversely, if using drier apples, you can reduce it to 1 teaspoon.
- **Storage**: Keep leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in a 300°F oven for 10-15 minutes until warmed through, or enjoy cold straight from the fridge.
- **Serving Suggestions**: This crisp pairs beautifully with bourbon vanilla ice cream, homemade whipped cream, or a scoop of salted caramel ice cream. A drizzle of caramel sauce over the top adds extra elegance.
- **Spice Adjustments**: If you prefer a spicier crisp, add ⅛ teaspoon of ground cloves or ginger. If serving to those sensitive to spice, reduce the cinnamon to ¼ teaspoon in the filling.
- **Cornstarch Alternative**: If you don’t have cornstarch, use tapioca starch or arrowroot powder in the same amount – both work beautifully in gluten-free baking.
- **Nut Allergies**: If you’re allergic to almonds, substitute the almond flour with an additional ½ cup of gluten-free oats or use sunflower seed flour for similar results.
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