Indulge in the comforting flavors of a homemade apple crisp with oat topping. This delightful dessert combines tender, spiced apples with a crunchy, buttery oat topping, creating a perfect balance of sweetness and texture. Ideal for any occasion, this recipe is sure to become a family favorite.
While most of the ingredients for this apple crisp are common pantry staples, you might need to pick up rolled oats and unsalted butter if you don't already have them at home. Rolled oats provide the perfect texture for the topping, while unsalted butter ensures you can control the saltiness of the dish.

Ingredients For Apple Crisp With Oat Topping
Apples: These are the star of the dish, providing a sweet and tart base. Lemon juice: Adds a touch of acidity to balance the sweetness of the apples. Granulated sugar: Sweetens the apple mixture. Ground cinnamon: Adds warmth and spice to the apples. Ground nutmeg: Enhances the flavor with a hint of nuttiness. Rolled oats: Creates a crunchy texture for the topping. All-purpose flour: Helps bind the topping ingredients together. Brown sugar: Adds a rich, molasses-like sweetness to the topping. Unsalted butter: Provides moisture and richness to the topping.
Technique Tip for This Recipe
To ensure your apple crisp has a perfectly balanced flavor, make sure to use a mix of apple varieties. Combining tart Granny Smith apples with sweeter Honeycrisp or Fuji apples will give your dessert a more complex taste and texture. Additionally, when mixing the oat topping, be careful not to overmix; you want the mixture to remain crumbly to achieve that delightful crispy texture.
Suggested Side Dishes
Alternative Ingredients
apples - Substitute with pears: Pears have a similar texture and sweetness, making them a great alternative in fruit crisps.
lemon juice - Substitute with lime juice: Lime juice provides a similar acidity and tartness to balance the sweetness of the fruit.
granulated sugar - Substitute with honey: Honey adds a natural sweetness and a slight floral note to the dish.
ground cinnamon - Substitute with ground allspice: Allspice offers a warm, spicy flavor that complements the fruit well.
ground nutmeg - Substitute with ground cloves: Ground cloves provide a similar warm, spicy flavor profile.
rolled oats - Substitute with quinoa flakes: Quinoa flakes offer a similar texture and are a good gluten-free alternative.
all-purpose flour - Substitute with almond flour: Almond flour provides a nutty flavor and is a gluten-free option.
brown sugar - Substitute with coconut sugar: Coconut sugar has a similar caramel-like flavor and is less processed.
unsalted butter - Substitute with coconut oil: Coconut oil provides a similar fat content and adds a subtle coconut flavor.
Other Alternative Recipes Similar to This Dessert
How to Store or Freeze This Dessert
- Allow the apple crisp to cool completely at room temperature before storing. This helps prevent condensation, which can make the topping soggy.
- Transfer the cooled dessert to an airtight container. If you don't have a container large enough, you can cover the baking dish tightly with plastic wrap or aluminum foil.
- Store the apple crisp in the refrigerator for up to 5 days. The cool environment will help maintain the freshness of the apples and the crispness of the oat topping.
- For freezing, first ensure the apple crisp is completely cooled. This prevents ice crystals from forming, which can affect the texture.
- Wrap the apple crisp tightly in plastic wrap, then cover with a layer of aluminum foil. This double layer helps protect against freezer burn.
- Label the package with the date so you can keep track of its freshness. The apple crisp can be frozen for up to 3 months.
- When ready to enjoy, thaw the apple crisp in the refrigerator overnight. This slow thawing process helps maintain the texture and flavor.
- To reheat, preheat your oven to 350°F (175°C). Place the apple crisp in an oven-safe dish and cover with aluminum foil to prevent the topping from burning. Heat for about 20 minutes or until warmed through.
- For a quicker option, you can reheat individual portions in the microwave. Place a serving on a microwave-safe plate and heat on medium power for 1-2 minutes, checking frequently to avoid overheating.
How to Reheat Leftovers
Preheat your oven to 350°F (175°C). Place the leftover apple crisp in an oven-safe dish, cover with aluminum foil to prevent the oat topping from burning, and bake for about 15-20 minutes until warmed through. Remove the foil for the last 5 minutes to re-crisp the topping.
For a quicker method, use a microwave. Place a portion of the apple crisp in a microwave-safe bowl. Heat on medium power for 1-2 minutes, checking halfway through to ensure it heats evenly. Be cautious, as the oat topping may not stay as crisp.
If you have an air fryer, preheat it to 350°F (175°C). Place the apple crisp in a small, air fryer-safe dish. Heat for about 5-7 minutes, checking frequently to avoid overcooking. This method helps maintain the crispiness of the oat topping.
On the stovetop, use a skillet over medium-low heat. Add the apple crisp and cover with a lid. Heat for about 5-10 minutes, stirring occasionally to ensure even warming. This method can help retain some of the oat topping's texture.
For a toaster oven, preheat to 350°F (175°C). Place the apple crisp in an oven-safe dish and cover with foil. Heat for about 10-15 minutes, removing the foil for the last few minutes to re-crisp the oat topping.
Best Tools for Making This Recipe
Oven: Used to bake the apple crisp at a consistent temperature of 350°F (175°C).
Mixing bowl: Essential for combining the apple mixture and the oat topping separately.
Peeler: Handy for peeling the apples quickly and efficiently.
Apple corer: Makes it easy to remove the cores from the apples.
Knife: Necessary for slicing the apples into even pieces.
Cutting board: Provides a safe and stable surface for slicing the apples.
Baking dish: Used to hold the apple mixture and oat topping while baking.
Measuring cups: Ensures accurate measurement of ingredients like sugar, flour, and oats.
Measuring spoons: Used for precise measurement of smaller quantities like cinnamon and nutmeg.
Wooden spoon: Ideal for mixing the apple mixture and the oat topping.
Spatula: Useful for spreading the oat topping evenly over the apple mixture.
Oven mitts: Protects your hands when placing the baking dish in and out of the oven.
Cooling rack: Allows the apple crisp to cool slightly before serving.
How to Save Time on This Recipe
Prepare the filling: Peel, core, and slice the apples in advance. Store them in the fridge with a bit of lemon juice to prevent browning.
Use a food processor: Quickly mix the oats, flour, brown sugar, and butter by pulsing them in a food processor until crumbly.
Pre-measure ingredients: Measure out all your ingredients before starting. This helps streamline the process and ensures you don’t forget anything.
Batch cooking: Double the recipe and freeze half for a quick dessert later. Just bake directly from the freezer, adding a few extra minutes to the baking time.
Use pre-made topping: Buy a pre-made crumble topping from the store to save time on mixing.

Apple Crisp with Oat Topping
Ingredients
Filling
- 6 apples, peeled, cored, and sliced
- 2 tablespoon lemon juice
- ½ cup granulated sugar
- ½ teaspoon ground cinnamon
- ¼ teaspoon ground nutmeg
Topping
- 1 cup rolled oats
- ½ cup all-purpose flour
- ½ cup brown sugar
- ½ cup unsalted butter, melted
Instructions
- Preheat oven to 350°F (175°C).
- In a mixing bowl, combine apples, lemon juice, granulated sugar, cinnamon, and nutmeg. Transfer to a baking dish.
- In another bowl, mix oats, flour, brown sugar, and melted butter until crumbly. Sprinkle over the apple mixture.
- Bake for 45 minutes or until the topping is golden brown and the apples are tender.
- Let cool slightly before serving.
Nutritional Value
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