Ingredients
Equipment
Method
Make the apple filling
- Toss the sliced apples with granulated sugar, brown sugar, cinnamon, nutmeg, and lemon juice, then spread them evenly in the slow cooker.
- Cover and cook on Low for 2.5 hours, until the apples begin to soften.
Make and add the oat crumble
- Combine rolled oats, all-purpose flour, brown sugar, cinnamon, and salt, then drizzle in melted unsalted butter and toss until evenly moistened and clumps form.
- Scatter the crumble evenly over the apples.
- Place a folded kitchen towel or several paper towels under the slow cooker lid to catch condensation, keeping the topping from getting soggy.
Cook and finish
- Cook on Low for an additional 0.5 to 0.75 hours (total 2.5–3 hours) until the apples are tender and the topping is set.
- For a crispier result, broil for 3 to 4 minutes after cooking, until the top is lightly browned.
- Serve warm with vanilla ice cream and drizzle with caramel sauce.
Notes
Pro tip: the towel/paper towel under the lid helps control condensation, which keeps the oat topping from turning soggy. Refrigerate leftovers in a covered container for up to 3 days; reheat in the microwave or in a 350°F oven just until warmed through. Freezing isn’t recommended because the crumble texture softens after thawing. For a dairy-light swap, use plant-based butter in the crumble (ice cream remains optional).
