Welcome autumn with a warm, bubbly dish of Apple Crisp. This homemade family favorite fills the kitchen with cozy apple-and-spice aromas and pairs perfectly with a cup of tea or a scoop of vanilla ice cream.
This recipe for Warm Apple Crisp with Oats and Cinnamon is a simple way to bring fall into your home. The filling is lightly sweetened and tart, while the buttery oat crumble on top bakes into crisp, cookie-like clusters.
I adore fall baking. As the weather cools I naturally shift from lemons and berries to cinnamon, vanilla, butter, and brown sugar. My oven gets a workout, and apples become the star ingredient.
Apple picking is one of my favorite seasonal rituals — the scent of cider and doughnuts, the crunch of fresh apples, and the sea of flannel and boots make me feel instantly cozy. After a day at the orchard, I love turning a haul of apples into applesauce and this show-stopping apple crisp.
This apple crisp keeps the filling simple: apples tossed with a touch of lemon, cinnamon, and sugar. The topping is the opposite — rich, buttery, and spiced, with oats added for texture and an old-fashioned feel. It forms crunchy clusters that stay crisp even after reheating.
The contrast of tender, bubbling apples and the crunchy cinnamon-oat topping is what makes this dessert irresistible. I often use this crumble on other fruit crisps or as a streusel on pies — it’s versatile and consistently delicious.
What apples are best for apple crisp?
Choose apples you enjoy eating and include at least one variety that holds its shape during baking so the filling has texture. Good options include:
- Golden Delicious
- A mix of Granny Smith with Cortland, McIntosh, Gala, or Pink Lady
- Honeycrisp (pair with a tart apple or add extra lemon if the apples are very sweet)
For this recipe I used a 50/50 mix of Granny Smith and Honeycrisp. McIntosh and Cortland add flavor but can become soft when baked, so combining them with firmer apples gives the best balance of flavor and structure.
About the oats and cinnamon topping
The crumble topping is the star: melted butter helps everything bind and creates crunchy clusters that bake into little cookie-like bites. The oats add texture and temper the richness of the butter and sugar, while cinnamon adds warmth. This topping holds up well, staying crisp even after reheating.
How to make Apple Crisp with Oats and Cinnamon from scratch
Serves 6–8.
Ingredients
Apple filling
- 8 medium apples (about 2–2½ lbs), cored, peeled, and sliced 1/2″ thick — for example, 4 Granny Smith and 4 Honeycrisp
- 1 tablespoon lemon juice
- 3 tablespoons sugar
- 1 teaspoon ground cinnamon
Cinnamon and oats crisp topping
- 3/4 cup all-purpose flour (or gluten-free flour to make it gluten free)
- 3/4 cup old-fashioned rolled oats (use gluten-free oats if needed)
- 1/2 cup white sugar
- 1/4 cup packed dark brown sugar
- 2 tablespoons ground cinnamon
- 1/2 teaspoon salt
- 8 tablespoons (1 stick) unsalted butter, melted and slightly cooled
Instructions
- Preheat the oven to 350°F (175°C). Grease an 8×8-inch glass baking dish with butter or cooking spray.
- In a large bowl, combine the apple slices, lemon juice, sugar, and cinnamon. Toss until the apples are evenly coated.
- Transfer the apple mixture to the prepared baking dish and set aside.
- In a medium bowl, mix the flour, oats, white sugar, brown sugar, cinnamon, and salt until well combined.
- Pour in the melted butter and stir with a spoon or use clean hands until the mixture is evenly moistened and clumps begin to form.
- Crumble the topping over the apples, keeping larger clusters intact for texture.
- Bake at 350°F for 55–60 minutes, until the topping is golden brown and crisp and the apples are bubbling and tender. Test the apples with a small knife — if it slides in with no resistance, the filling is done.
- Allow the crisp to cool for at least an hour so the juices thicken slightly. Serve warm with vanilla ice cream or whipped cream if desired.
Variations and substitutions
If you prefer a topping without oats, substitute chopped nuts or make a simple streusel:
- 3/4 cup all-purpose flour
- 3/4 cup white sugar
- 1/4 cup brown sugar
- 2 tablespoons cinnamon
- 1/2 teaspoon salt
- 5 tablespoons cold unsalted butter, cut into cubes
Combine the dry ingredients and cut in the cold butter with your fingers or a food processor until the mixture resembles wet sand. Sprinkle over the apples and bake as directed.
Gluten-free option
The filling is naturally gluten free. To make the topping gluten free, swap the all-purpose flour for your preferred gluten-free flour and use certified gluten-free oats or a gluten-free granola or cookie crumble.
Storage
Store leftover apple crisp tightly covered at room temperature for a day or two, or refrigerate for longer storage. Reheat gently in the oven or microwave; the topping retains some crunch when reheated.
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Notes
I used 4 Granny Smith and 4 Honeycrisp apples for texture and balanced flavor. You can use any combination you like, but including at least one firmer apple (like Granny Smith or Golden Delicious) helps maintain nice chunks in the filling.