Ingredients
Equipment
Method
Make apple filling
- Toss sliced apples with granulated sugar, brown sugar, cinnamon, nutmeg, and lemon juice, then spread the mixture evenly in the slow cooker.
- Cover the slow cooker while you prepare the crumble topping so the apples stay ready for topping.
Make oat crumble and assemble
- Combine rolled oats, all-purpose flour, packed brown sugar, cinnamon, and salt, then drizzle in melted butter and toss until evenly moistened and clumps form.
- Scatter the oat crumble evenly over the apples.
- Place a folded kitchen towel or several paper towels under the slow cooker lid to catch condensation for a less soggy topping.
Cook, crisp, and serve
- Cook on Low for 2.5–3 hours, until the apples are tender and the topping is set.
- For a crispier result, broil for 3–4 minutes after cooking, watching closely until the top looks lightly browned.
- Serve warm with vanilla ice cream and caramel sauce.
Notes
Pro tip: using a folded kitchen towel or paper towels under the lid helps prevent condensation from turning the oat topping soggy. Store leftovers in the refrigerator up to 4 days; reheat gently in the microwave. Freezing is not recommended because the crumble texture can soften. For a dairy-free swap, use a plant-butter substitute in place of unsalted butter (caramel and ice cream can be replaced with dairy-free versions if desired).
