This warm apple crisp with oat topping has become one of my favorite quick desserts. It's easy, cozy, and the oat topping gets perfectly crisp every time thanks to the air fryer.
This recipe works so well when I want something sweet and simple without heating the whole kitchen. The apples turn soft and cinnamon-spiced, and the golden oat topping gives that perfect crunch.
I use ramekins for individual portions; they make serving easy and feel a little more special. It's one of those desserts I can make with just a few pantry staples and enjoy while it's still warm from the air fryer.
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⭐Why You'll Love This Apple Crisp with Oat Topping
- Simple Ingredients You Already Have: With just apples, oats, cinnamon, and a few pantry staples, you can make this anytime without a store run.
- Only 30 Minutes from Start to Finish: You don't need to wait long; this dessert goes from fresh apples to warm and golden in just half an hour.
- Best Served Warm with Ice Cream: That moment when the cold vanilla ice cream starts melting into the hot, spiced apples is pure comfort.
🧾Apple Crisp Ingredients
You'll find the exact measurements in the recipe card, but here's a closer look at a few of the ingredients and why I use them.
- Apples: I always go for a mix of Granny Smith and Gala or Honeycrisp. The balance of tart and sweet gives the filling more depth and keeps it from tasting flat.
- Lemon Juice & Water: A little lemon brightens the apples while they cook, and a splash of water helps keep the texture soft without making things soggy.
- Brown Sugar, Cinnamon, Salt & Cornstarch: These are my go-to for building flavor and helping the apples caramelize. The cornstarch thickens the juices just enough so you get that silky texture.
- Butter, Oats, Flour, Vanilla & Walnuts: Melted butter pulls everything together. I love the oats for their crunch, the flour for structure, a touch of vanilla for warmth, and chopped walnuts for a little texture and richness in every bite.
👩🏻🍳How to Make Apple Crisp
You can find the complete printable Apple Crisp recipe with measurements below, but for now, here's a quick overview of how it goes:
1. Peel, core, and cut the apples, then mix with lemon juice, brown sugar, cornstarch, cinnamon, salt, melted butter, and water until coated.
2. Transfer apples to ramekins, cover with foil, and bake in the oven or air fryer for 10 minutes.
3. In a bowl, mix flour, oats, walnuts, cinnamon, salt, vanilla, melted butter, and brown sugar until crumbly.
4. Remove foil, stir apples, sprinkle topping, and bake at 350°F (175°C) for 10 minutes until golden. Cool slightly before serving with ice cream.
📖Variations
- Apple Crumble: Similar to apple crisp, but with a simpler crumbly topping made from flour, sugar, butter, cinnamon, and nutmeg.
- Nutty Apple Crisp: Add a satisfying crunch by mixing in pecans, walnuts, or almonds with the topping.
- Spiced Apple Crisp: Try adding spices like nutmeg, cloves, or cardamom to bring warm, cozy flavors beyond just cinnamon.
💭Tips for Success
Prep the Filling First: I always mix the apple filling before I start the topping; it gives the flavors time to settle while I get everything else ready.
Don't Pack the Topping Too Tight: I gently scatter the oat mixture over the apples instead of pressing it down; this helps it bake up golden and crisp instead of dense.
Store Leftovers Properly: If I have any left, I cover the ramekins and refrigerate them. They keep well for up to 2 days, and a quick reheat in the air fryer brings the crunch right back.
🍎More Apple Recipes to Try!
If you love using apples when you are cooking, then check out the following recipes for inspiration:
🍰More Dessert Recipes!
Here are more of my favorite dessert recipes! Try these:
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Recipe
Apple Crisp With Oat Topping
Ingredients
Apples Filling
- 4 Apples
- 2 tablespoon Lemon Juice
- 2 teaspoon Water
- 2 tablespoon Light Brown Sugar
- ½ teaspoon Cinnamon
- ⅛ teaspoon Salt
- 2 teaspoon Cornstarch
- 1 tablespoon Melted Butter
Topping
- 45 g Rolled Oats
- 60 g Flour
- 38 g Light Brown Sugar
- 28 g Chopped Walnuts
- ⅛ teaspoon Salt
- ½ teaspoon Cinnamon
- 60 g Melted Butter
- ½ teaspoon Vanilla Extract
Instructions
- Brush the ramekins with oil.
- Remove the cores from the apples and peel the skin.
- Cut the apples into small pieces and place them in a large bowl.
- Add lemon juice, brown sugar, cornstarch, cinnamon, salt, melted butter, and water to the apples and mix until evenly coated.
- Spoon the apple mixture into the prepared ramekins and cover tightly with aluminum foil.
- Preheat the air fryer to 350°F (175°C).
- Place the ramekins in the air fryer and cook for 20 minutes.
- Meanwhile, in a bowl, mix flour, rolled oats, chopped walnuts, cinnamon, salt, vanilla extract, melted butter, and brown sugar until crumbly.
- Uncover the ramekins and sprinkle the oat topping evenly over the apples.
- Air fry uncovered for 10 more minutes, or until the topping is golden and the apples are tender.
- Let the apple crisps cool for 5 minutes before serving.
- Serve warm with a scoop of vanilla ice cream.
Notes
Nutrition
Nutritional information is based on third-party calculations and should be considered an estimate only. Actual nutritional content will vary based upon brands used, measuring methods, cooking method, portion sizes, and more.
Sandra says
This took me back to childhood, my mom used to make this in Autumn, and I can still vividly remember the aromas in the kitchen, thanks for the recipe.
Estefania says
Hi Sandra, Thanks for your comment, yes totally agree the aroma in the kitchen is just nostalgic.