Easy mini blueberry plum crumbles. These delicious crumbles combine sweet and juicy berries and plums with cozy cinnamon and cardamom and a buttery brown sugar oat crumb topping. Simple to make, full of complex flavor, and perfect for Summer/early-Fall baking. Easily adaptable, gluten free and vegan friendly.
Blueberry Plum Filling
- 2 medium plums, pitted and sliced
- 1–1/2 cups blueberries
- 2 Tbsp (25g) granulated sugar
- 1/2 tsp ground cinnamon
- 1/4 tsp ground cardamom
- optional but recommended: 2 tsp arrowroot starch ¹
Oat Crumble Topping
- 1/2 cup (45g) rolled oats
- 1/4 cup (30g) all-purpose flour ²
- 1/4 cup (50g) light brown sugar, packed
- pinch fine sea salt
- 3 Tbsp (43g) unsalted butter, softened ³
- Preheat the oven to 375℉. Lightly grease 4 mini ramekins with butter or baking spray. Set aside.
- In a medium mixing bowl, toss together the plum slices, blueberries, sugar, spices, and arrowroot starch, if using. Set aside.
- Make the crumble topping: In a small mixing bowl, stir together the oats, flour, brown sugar, and salt until combined.
- Add the butter, and use a pastry blender or your fingers to cut the butter into the dry ingredients. Continue until the butter is completely incorporated, and the mixture comes together into a chunky crumb.
- Divide the blueberry-plum mixture between the prepared ramekins. Top with the crumble topping and bake for 25-30 minutes, until the crumble topping is golden brown and the berry juices begin to bubble.
- Remove from the oven and let cool for 5 minutes. Serve warm a scoop of vanilla ice cream. Enjoy!!
¹ Arrowroot starch is my favorite pie and fruit filling thickener. It creates a smooth, shiny sauce without a noticeable added taste. As a second choice, you can also substitute (blended) instant tapioca pearls or cornstarch. Or, omit the starch, and enjoy a saucier crumble!
³ Make them vegan by using vegan butter (such as Earth Balance buttery baking sticks), or room-temperature unrefined coconut oil.
Keywords: blueberry plum crumbles, mini crumbles, berry, cardamom, chai, plum crumble, easy