Variation
Mixed Berry: Replace half the blueberries with raspberries or blackberries.
Dessert · Baking · American
Blueberry Crumble With Vanilla Bean Ice Cream
A classic blueberry crumble featuring a jammy fruit center and a golden, buttery oat topping that pairs perfectly with melting vanilla bean ice cream.
Prep
15 min
Cook
40 min
Difficulty
Easy
Serves
6
Preparation
Get these tasks done before you start cooking.
Initial Setup
- 1
Preheat Oven
Set your oven to 190°C (375°F) and lightly grease a 2-quart baking dish with butter.
Tip: Standard ceramic or glass baking dishes work best for even heat distribution.
How to Make Blueberry Crumble With Vanilla Bean Ice Cream
Total time: 55 min · Yields 6 servings
- 1
Prepare the Blueberry Filling
In a large mixing bowl, toss the blueberries with the granulated sugar, cornstarch, lemon zest, lemon juice, and cinnamon. Ensure the berries are evenly coated before transferring them into your prepared baking dish.
- 2
Mix the Dry Topping Ingredients
In a separate medium bowl, combine the flour, rolled oats, brown sugar, and salt. Use a whisk to break up any large clumps of sugar so the mixture is uniform.
- 3
Cut in the Butter
Add the cold, cubed butter to the flour mixture. Using a pastry cutter or your fingertips, work the butter into the dry ingredients until the mixture resembles coarse crumbs with some pea-sized pieces remaining.
- 4
Assemble the Crumble
Sprinkle the topping evenly over the blueberries in the baking dish. Do not press the topping down, as you want the heat to circulate through the gaps for a crispier finish.
- 5
Bake Until Golden
Place the dish in the oven and bake for 35 to 40 minutes. The blueberry juice should be bubbling at the edges and the oat topping should be deep golden brown.
- 6
Rest and Serve
Remove from the oven and let the crumble sit for at least 10 minutes. This allows the fruit filling to set. Serve warm with a generous scoop of vanilla bean ice cream.
Chef's Tips
- Use cold butter straight from the fridge to ensure the topping stays crumbly rather than melting into a paste.
- If using frozen blueberries, do not thaw them first. Add an extra 5 minutes to the baking time.
- For a nuttier flavor, add 50g of chopped pecans or walnuts to the oat topping.
What to Serve with Blueberry Crumble With Vanilla Bean Ice Cream
The garlic butter sauce is the star — pick sides that soak it up or balance the richness.
- Serve warm with high-quality vanilla bean ice cream.
- Drizzle with a little heavy cream for a classic British feel.
- Top with a dollop of lemon-scented whipped cream.
Recipe Variations
Once you've mastered the base recipe, try these popular twists.
Variation
Gluten-Free: Substitute the all-purpose flour with a 1:1 gluten-free baking blend and use certified gluten-free oats.
Storage & Reheating
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in a 175°C oven for 10 minutes to restore the topping crispness.
Further reading
Frequently asked questions
Can I make this blueberry crumble ahead of time?
Yes, you can assemble the crumble and store it in the fridge for up to 24 hours before baking. For best results, add the topping just before placing it in the oven.
Why is my blueberry crumble topping soggy?
Soggy topping usually happens if the butter was too warm or if the dish was covered while cooling. Always use cold butter and let the crumble rest uncovered.
Is cornstarch necessary for the filling?
Cornstarch acts as a thickener for the natural juices. Without it, the filling may be too watery, making the bottom of the crumble soft.
Can I use steel-cut oats instead of rolled oats?
No, steel-cut oats are too hard for this recipe. Rolled oats (old-fashioned oats) provide the perfect texture and chew.
How do I know when the blueberry crumble is finished baking?
The fruit juices should be thick and bubbling around the edges of the dish, and the topping should be a consistent golden brown color.
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