September Spice Apple Crisp with Oat Topping
A warm baked apple crisp infused with cinnamon and nutmeg, topped with a crunchy oat and brown sugar mixture, perfect for cozy September evenings. This American-inspired recipe, ready in about 65 minutes, layers Granny Smith apples, granulated sugar, ground cinnamon into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 310 calories and feeds 6, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 6 medium, peeled, cored, and sliced Granny Smith apples
- 1/3 cup granulated sugar
- 1 1/2 tsp ground cinnamon
- 1/4 tsp ground nutmeg
- 2 tbsp fresh lemon juice
- 1 cup old-fashioned rolled oats
- 1/2 cup all-purpose flour
- 1/2 cup packed brown sugar
- 1/3 cup cold, diced unsalted butter
- 1/4 tsp salt
The chef’s knife we’d prep this with → Best Chef's Knives for 2026: Top Picks + Buying Guide
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Equipment for this recipe
Tools this recipe's steps call for, with a link to each on Amazon.
Instructions
- Step 1: Preheat oven to 350°F. In a large mixing bowl, toss 6 peeled, cored, and sliced Granny Smith apples with 1/3 cup granulated sugar, 1 1/2 tsp ground cinnamon, 1/4 tsp ground nutmeg, and 2 tbsp fresh lemon juice until evenly coated.
- Step 2: Transfer the apple mixture to a greased 9x13-inch baking dish, spreading into an even layer.
- Step 3: In a separate bowl, combine 1 cup old-fashioned rolled oats, 1/2 cup all-purpose flour, 1/2 cup packed brown sugar, and 1/4 tsp salt. Cut in 1/3 cup cold diced unsalted butter using a pastry cutter or your fingers until the mixture resembles coarse crumbs.
- Step 4: Sprinkle the oat topping evenly over the apple layer.
- Step 5: Bake uncovered for 45-50 minutes until the topping is golden brown and the apple filling is bubbling around the edges. Let cool slightly before serving.









