Apple and rhubarb crumble
Bake a cozy Apple and rhubarb crumble with tart fruit and a crisp oat topping—serve warm with vanilla ice cream.
Ingredients
- 500g/ 4 1/2 cups rhubarb stems
- 1/3 cup white sugar
- 3 Granny Smith apples (~600g/1.2lb whole) (peeled and cut 1.5cm / 3/5" cubes, ~3 cups/450g once cut (Note 2))
- Zest of 1 orange (optional but recommended)
- 1 cup rolled oats (not quick or steel cut)
- 1 cup flour (plain/all purpose)
- 3/4 cup (tightly packed) brown sugar
- 1/2 tsp baking powder
- 1/2 tsp cinnamon powder
- 90g/ 6 tbsp unsalted butter (melted)
- Pinch of salt
- Vanilla ice cream (or pouring custard)
Instructions
Step 1: Preheat the oven and set up
Preheat the oven to 200°C/375°F (180°C fan) so it's ready as soon as the crumble is assembled. While the oven comes up to temperature, set your work area on the white quartzite surface with a large mixing bowl and a rectangular 30 x 20 cm (12 x 8") white baking dish at hand — you'll use these straight away. This small moment of readiness keeps the rhythm of the bake calm and focused.
Step 2: Toss the rhubarb and apples into the filling
In a large mixing bowl, place the trimmed rhubarb stems, the peeled and 1.5 cm cubed Granny Smith apples, the white sugar and the orange zest. Use a wooden spoon to toss gently until every apple cube and rhubarb stalk is evenly coated and glossy with sugar. Spread this vibrant mixture out evenly into the white rectangular baking dish so the fruit layer is level and the juices can bubble up uniformly while baking.
Step 3: Make the sandy crumble topping
In a separate bowl combine the rolled oats, plain flour, tightly packed brown sugar, baking powder, cinnamon and a pinch of salt. Pour in the melted unsalted butter and use a wooden spoon (or a cutting/smearing motion against the bowl wall) to bring everything together. Work until the dry ingredients are fully incorporated and the mixture becomes a coarse, sandy texture with some larger oat-and-butter clumps.
Step 4: Scrunch into clumps and top the filling
Take handfuls of the sandy mixture, scrunch each handful into a fist to compress it, then break it open into lumps and scatter those clumps and the remaining sandy crumbs across the fruit in the rectangular dish so there are irregular clusters and bare patches — this uneven, rustic distribution gives the crumble its best baked texture. Keep the wooden spoon nearby and a small mixing bowl with a little leftover crumble for authenticity.
Step 5: Bake until bubbling and golden
Slide the prepared rectangular baking dish into the preheated oven and bake for about 35 minutes, watching for the rhubarb to become soft and the topping to turn a deep golden brown with crisp oat clusters. Remove the dish and let it rest on the white quartzite surface for 5 minutes so juices settle slightly but remain glossy and syrupy.
Step 6: Scoop and serve with cold vanilla
Spoon generous portions of the warm apple and rhubarb crumble into bowls or serve straight from the white rectangular dish. Add scoops of cold vanilla ice cream (or pour custard) so the creamy coolness meets the hot, crunchy topping and glossy fruit juices. Present with a metallic serving spoon and a small plated portion nearby for sharing.
Notes
- Use firm, brightly colored rhubarb stalks and trim any woody ends.
- Prefer tart apples like Granny Smith for structure and balance.
- If making ahead, assemble and refrigerate up to 24 hours before baking.
- Reheat in the oven to restore crispness; avoid microwaving if possible.
- For a dairy-free version, substitute melted coconut oil and choose dairy-free ice cream.