Apple Oat Crumble

Name: Apple Oat Crumble
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 8 servings
Ingredients: 6 medium apples, peeled and sliced; 1/4 cup granulated sugar; 1 tablespoon lemon juice; 1 teaspoon cinnamon; 1 cup rolled oats; 1/2 cup all-purpose flour; 1/2 cup packed brown sugar; 1/2 cup unsalted butter, melted; 1/4 teaspoon salt

Highlighted under: Sugar & Spice

I love nothing more than a cozy dessert after a hearty meal, and this Apple Oat Crumble hits the sweet spot. The combination of tender baked apples with a crunchy oat topping not only gives a delightful texture but also fills the house with an irresistible aroma. It’s an easy recipe that uses simple ingredients, making it a perfect go-to for unexpected guests or rainy days. Serve it warm with a scoop of vanilla ice cream for an extra treat!

Created by

Rowan Tate

Last updated on 2026-02-08T04:05:36.495Z

When I first attempted to make this Apple Oat Crumble, I was pleasantly surprised by how simple yet delicious it turned out. I opted for a mix of tart and sweet apples, which really made the flavors pop. The crumble topping, made from oats and brown sugar, provides a satisfying crunch that complements the softness of the baked apples perfectly.

One of the best things about this recipe is that it's highly customizable. If you're feeling adventurous, try adding a sprinkle of cinnamon or some chopped nuts for an added layer of flavor. I always make a double batch so I can enjoy leftovers the next day!

Why You'll Love This Recipe
A delightful balance of sweet and tart flavors from fresh apples
The crunchy oat topping adds a satisfying texture
Perfectly customizable to suit your taste preferences

Understanding Ingredient Roles

The choice of apples is crucial for a successful crumble. Varieties like Granny Smith or Honeycrisp maintain their structure while infusing the dish with a sweet-tart flavor. If you prefer a sweeter crumble, consider adding a few Fuji or Gala apples. To enhance the filling further, you could add a sprinkle of nutmeg or chopped nuts for extra texture and flavor.

The oat topping is where the texture truly shines in this dessert. Using rolled oats provides a heartiness that quick oats simply can't match. Make sure to mix the topping thoroughly to ensure every bite is coated in buttery goodness. If you like a chewier texture, you can press the topping down slightly before baking, creating more clusters.

Make-Ahead and Storage Tips

For those busy days, you can prepare the filling and crumble topping up to 24 hours in advance. Store the apple mixture in an airtight container and the crumble topping in a separate one in the fridge. When you're ready to bake, simply combine them in the baking dish and follow the baking instructions. This not only saves time but also allows the flavors to meld together wonderfully.

If you have leftovers, store them in the refrigerator in an airtight container for up to three days. Reheat individual portions in the microwave or in the oven at 350°F (175°C) until warmed through, about 10-15 minutes. You can also freeze the unbaked crumble for up to three months. Just cover it tightly and bake from frozen, adding a few extra minutes to the cooking time.

Ingredients

For the filling

6 medium apples, peeled and sliced
1/4 cup granulated sugar
1 tablespoon lemon juice
1 teaspoon cinnamon

For the crumble topping

1 cup rolled oats
1/2 cup all-purpose flour
1/2 cup packed brown sugar
1/2 cup unsalted butter, melted
1/4 teaspoon salt

Instructions

Follow these steps to create the perfect Apple Oat Crumble!

Prepare the filling

Preheat your oven to 350°F (175°C). In a large mixing bowl, combine sliced apples with granulated sugar, lemon juice, and cinnamon. Toss until well coated and set aside.

Make the crumble topping

In another bowl, mix rolled oats, flour, brown sugar, melted butter, and salt until crumbly. Ensure there are no big butter clumps left.

Assemble the crumble

Spread the apple mixture evenly in a greased baking dish. Top with the crumble mixture, making sure it’s evenly distributed.

Bake

Bake in the preheated oven for 30 minutes or until the apples are bubbly and the topping is golden brown.

Serve

Let the crumble cool slightly before serving. Enjoy it warm, optionally topped with ice cream!

Enjoy your delicious Apple Oat Crumble!

Pro Tips

For the best flavor, experiment with different apple varieties. Honeycrisp and Granny Smith work wonderfully together for a mix of sweetness and tartness.

Serving Suggestions

This Apple Oat Crumble is incredibly versatile when it comes to serving options. While it's divine on its own, topping it with a scoop of vanilla ice cream transforms it into an indulgent dessert. For a fun twist, try pairing it with caramel sauce or drizzling some warm maple syrup over the top before serving.

For a more decadent experience, consider serving it alongside a dollop of whipped cream or crème fraîche. Adding a sprinkle of chopped nuts or toasted coconut on top can introduce an extra crunch that complements the soft apple filling beautifully.

Troubleshooting Common Issues

If you find your crumble topping isn’t coming out as crispy as you'd like, it could be due to too much butter or not baking it long enough. Make sure you evenly distribute the mix over the apples and consider baking it a little longer if the topping isn’t golden brown after 30 minutes. Aim for a bubbling, slightly crisp topping for the best texture.

Another common issue is a runny filling. To avoid this, ensure you're using apples that hold their shape well, and consider adding a tablespoon of cornstarch to the apple mixture. This will help thicken the juice released during baking, resulting in a perfectly cohesive filling.

Questions About Recipes

→ Can I use frozen apples?

Yes, though fresh apples provide the best texture. If using frozen, ensure they're thawed and drained to avoid excess moisture.

→ How should I store leftovers?

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place in the oven until warmed through.

→ Can I make this ahead of time?

Absolutely! Prepare the filling and crumble topping separately, store them in the fridge, and assemble just before baking.

→ What can I serve with Apple Oat Crumble?

Serve it warm with a scoop of vanilla ice cream, whipped cream, or a drizzle of caramel sauce for an extra treat.