Skillet-Baked Apple Crisp with Cinnamon Oat Topping
Warm baked apple crisp featuring tender cinnamon-spiced apples topped with a crunchy oat and brown sugar crumble, cooked entirely in a cast iron skillet. This American-inspired recipe, ready in about 60 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 300 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
- 5 cups, peeled and sliced Granny Smith apples
- 1/3 cup granulated sugar
- 1 tsp ground cinnamon
- 1 tbsp lemon juice
- 1 cup old-fashioned rolled oats
- 1/2 cup all-purpose flour
- 1/2 cup packed brown sugar
- 6 tbsp, cold and diced unsalted butter
- 1/4 tsp ground nutmeg
- 1/4 tsp salt
The cast-iron skillet we’d sear this in → Best Cast Iron Skillets 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 375°F. In a large bowl, toss 5 cups peeled and sliced Granny Smith apples with 1/3 cup granulated sugar, 1 tsp ground cinnamon, and 1 tbsp lemon juice until evenly coated.
- Step 2: Spread the apple mixture evenly in a 10-inch cast iron skillet.
- Step 3: In a separate bowl, combine 1 cup rolled oats, 1/2 cup all-purpose flour, 1/2 cup packed brown sugar, 1/4 tsp ground nutmeg, and 1/4 tsp salt.
- Step 4: Using your fingers or a pastry cutter, cut 6 tbsp cold diced unsalted butter into the oat mixture until it resembles coarse crumbs.
- Step 5: Sprinkle the oat topping evenly over the apples in the skillet.
- Step 6: Bake for 40-45 minutes until the topping is golden brown and the apples are bubbling and tender.
- Step 7: Remove from oven and let cool for 10 minutes before serving warm, optionally with vanilla ice cream.








