Equipment
* optional
Ingredients
Fruit Filling
- 800 g nectarines, sliced into wedges
- 300 g blackberries, whole, washed and dried
- 100 g granulated sugar
- 25 g cornstarch
- 15 ml lemon juice, freshly squeezed
- 5 ml vanilla extract
Oat Crumble Topping
- 120 g all-purpose flour
- 90 g old-fashioned rolled oats
- 150 g light brown sugar, packed
- 2 g ground cinnamon
- 3 g fine sea salt
- 115 g unsalted butter, cold and cubed
Nutrition (per serving)
Method
Preheat your oven to 190°C (375°F). Lightly grease a 2-liter baking dish with a small amount of butter.
In a large mixing bowl, gently toss the sliced nectarines and blackberries with the granulated sugar, cornstarch, lemon juice, and vanilla extract until the fruit is evenly coated and no dry pockets of starch remain.
In a medium bowl, whisk together the flour, rolled oats, brown sugar, cinnamon, and salt. Add the cold cubed butter and work it into the dry ingredients using your fingertips or a pastry blender until the mixture resembles coarse wet sand with pea-sized clumps of butter remaining.
Transfer the fruit mixture into the prepared baking dish, spreading it into an even layer. Sprinkle the oat crumble topping generously over the fruit, covering it completely.
Bake in the preheated oven for 45 to 50 minutes. The topping should be deep golden brown, and the fruit filling must be bubbling vigorously, not just at the edges but in the center of the dish.
Remove from the oven and place on a wire rack. Allow the crisp to rest for at least 20 minutes before serving. This rest period allows the fruit juices to thicken into a sauce.
Chef's Notes
- Leave the skins on the nectarines; they provide beautiful color and help the fruit slices maintain their structure during baking.
- Temperature of the butter is crucial for the topping. If the butter melts before baking, the topping will be dense rather than crumbly. Keep it cold.
- Serve warm with a scoop of vanilla bean ice cream or a dollop of crème fraîche to balance the sweetness.
- If your stone fruit is very hard and under-ripe, add an extra tablespoon of sugar and macerate (let sit in sugar) for 20 minutes before assembling.
Storage
Refrigerator: 3 days — Cover tightly; topping may soften over time. Re-crisp in oven.
Freezer: 3 months — Bake from frozen if unbaked, or thaw and reheat if baked.
Reheating: Reheat in a 175°C (350°F) oven for 10-15 minutes to restore crispness.
