Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C). Lightly grease your baking dish with butter or spray, then spread the blackberries evenly inside. Sprinkle with sugar and a splash of lemon juice, tossing gently to coat the berries evenly.
- In a mixing bowl, combine the oats, flour, and brown sugar if using. Add the cold, cubed butter and use your fingers or a pastry cutter to work the butter into the dry ingredients until the mixture forms uneven, crumbly clumps.
- Distribute the crumbly oat mixture evenly over the prepared berries, pressing lightly so it adheres but still creates clumps.
- Place the baking dish in the oven and bake for about 35-40 minutes, or until the topping is golden brown and the filling is bubbling around the edges.
- Remove from the oven and let it cool slightly—this helps the filling thicken a bit. Serve warm, ideally with a scoop of vanilla ice cream or a dollop of whipped cream.
Notes
For a richer topping, substitute brown sugar and add a pinch of cinnamon. Make ahead by preparing the filling and topping separately; assemble just before baking.
