Bity
This strawberry crumble started life as a freezer rescue. I had a half bag of frozen strawberries going frosty at the back of the drawer, a friend coming over who eats gluten free, and about ten minutes before I needed something in the oven. Honestly, it turned out so well that it has been on repeat ever since.
The filling bakes down into a glossy, jammy layer, and the oat topping goes crisp and golden on top while staying soft where it meets the fruit. Better yet, you do not even need to thaw the berries first. So this is the pudding I make when I want something warm and homely with almost no effort.
Quick Breakdown
Why You’ll Love This Strawberry Crumble
- Frozen berries go straight in. There is no thawing and no draining, because the fruit softens and releases its juice as it bakes.
- It is naturally gluten free. Gluten-free flour thickens the filling and builds the topping, so everyone at the table can have a bowl.
- Ten minutes of hands-on time. Two bowls, one dish, and your fingers. That’s it.
- Pantry staples only. In fact, you probably have everything for it right now.
- It smells like summer in any month. Meanwhile the kitchen fills with that warm, buttery, jammy smell that brings people in from other rooms.
Ingredient Notes
- Strawberries. Four cups, fresh or frozen. Frozen berries are picked and frozen at their peak, so they often taste better than pale out-of-season fresh ones. In addition, berries are one of the easiest ways to get more fruit into your week, and the Academy of Nutrition and Dietetics has a lovely guide to choosing and storing them.
- Sugar. Two tablespoons in the fruit is enough for sweet berries. However, if yours are sharp, go up to three.
- Gluten-free flour. One tablespoon thickens the juices in the filling, and three quarters of a cup goes into the topping. A plain gluten-free blend works perfectly here.
- Oats. Rolled oats give the topping its chew and its craggy texture. If you are baking for someone with coeliac disease, buy oats labelled gluten free, because Harvard Health explains that oats can pick up gluten from other grains during farming and processing.
- Butter. Five tablespoons, melted or softened. Melted butter makes a clumpier topping; softened butter gives a finer, sandier crumb.
- Vanilla and lemon juice. Both are optional. Still, a teaspoon of lemon wakes up the fruit and stops the filling tasting flat.
- Salt. Just a pinch in the topping. It sharpens the butter and makes the whole thing taste more like itself.
Frozen or Fresh Strawberries for Crumble?
Both work, and that is the beauty of this strawberry crumble. Frozen strawberries go into the dish still frozen. Because they start cold, they take the full 35 to 40 minutes to soften and bubble, and they release a little more juice as they go.
Fresh berries, on the other hand, cook faster. So check the dish a few minutes early, and pull it out once the topping is golden and the fruit is bubbling at the edges. Hull them first and halve any big ones so everything softens at the same rate.
Whichever you use, do not skip the tablespoon of flour in the filling. That is what turns the juice into a soft, spoonable sauce rather than a puddle.
Crumble vs Crisp vs Cobbler
People ask me this every summer. Traditionally a crumble has a rubbed flour, butter and sugar topping, while a crisp adds oats so it bakes up crunchier. A cobbler is a different thing again, with a soft biscuit or batter topping dropped over the fruit.
Honestly, the lines have blurred, and most cooks now use crumble and crisp interchangeably. This one has oats in it, so you could call it a strawberry crisp if you like. I grew up calling anything with a rubbed topping a crumble, though, so a crumble it stays.
How To Make Strawberry Crumble
1. Heat the oven. First preheat the oven to 180°C / 350°F, so it is properly hot by the time the dish goes in.
2. Mix the filling. Next, in a large bowl, toss the strawberries with the sugar, the tablespoon of gluten-free flour, and the vanilla and lemon juice if you are using them. Then tip everything into an 8-inch (20 cm) baking dish. There is no need to thaw frozen berries.
3. Make the topping. In another bowl, stir together the oats, the rest of the gluten-free flour, the sugar, and the salt. After that, add the butter and rub it in with your fingertips until the mixture looks like damp, clumpy sand.
4. Scatter and bake. Then sprinkle the topping evenly over the fruit, right to the edges. Bake for 35 to 40 minutes, until the top is golden and the juices are bubbling up around the sides.
5. Let it rest. Finally, leave the dish to stand for about 10 minutes before serving. The filling thickens as it cools slightly, so you get a jammy spoonful rather than a runny one.
Why Is My Strawberry Crumble So Runny?
- It needed the rest. Straight from the oven the juices are thin. Ten minutes on the side makes a real difference, so be patient.
- The berries were very juicy. If the dish looks swimming halfway through baking, sprinkle about a teaspoon of flour over the bubbling fruit and carry on baking.
- The flour was left out of the filling. That single tablespoon is the thickener, and without it the juice has nothing to cling to.
- It came out too early. The filling needs to bubble at the edges, because that is the moment the flour actually thickens.
- The topping was soggy. Usually this means it went on in a thick, packed layer. Instead, scatter it loosely so steam can escape.
Tips for the Best Strawberry Crumble
- Use your fingertips for the topping, not a spoon. Warm hands press the butter into the oats and form those lovely clumps.
- Leave some bigger clusters. In fact, the uneven bits are what turn crunchiest.
- Bake on a tray if your dish is full to the brim. Otherwise the bubbling juice may drip onto the oven floor.
- If the topping is browning too quickly, lay a loose sheet of foil over the top for the last 10 minutes.
- Taste a berry before you start. Then adjust the sugar, since sharp fruit needs the extra tablespoon.
Storage and Reheating
- Fridge. Cover the cooled dish and keep leftovers in the fridge for up to 3 days.
- Reheating. Warm portions in the microwave, or put the whole dish back in a 180°C oven for about 10 to 15 minutes so the topping crisps up again.
- Freezing. I do not recommend freezing the baked strawberry crumble, because the topping loses its texture and turns soft once thawed.
- Making ahead. That said, you can mix the topping a day early and keep it covered in the fridge, then assemble and bake fresh.
Variations and Substitutions
- Mixed berries. Swap a cup of the strawberries for blueberries or raspberries. For a no-rub shortcut with a similar feel, my berry dump cake is wonderfully lazy.
- Strawberry and apple. Replace half the berries with thin apple slices. If apples are more your thing, try my old-fashioned apple crisp.
- Strawberry rhubarb. Use half chopped rhubarb and add an extra tablespoon of sugar, because rhubarb is very tart.
- Warm spice. Stir half a teaspoon of cinnamon or ground ginger into the topping.
- Not gluten free? Plain flour works in exactly the same amounts.
- Dairy free. Use a firm plant butter or coconut oil in place of the butter.
What to Serve With Strawberry Crumble
A scoop of cold ice cream melting into the hot fruit is my favourite way to eat it, and my homemade vanilla ice cream is perfect if you want to go all out. Of course, warm custard is the proper British answer, and it is hard to argue with.
For a lighter bowl, a spoonful of thick yoghurt adds a lovely tang. And if you are feeding a crowd, serve it alongside a peach cobbler so people can have a little of both. Equally, it is lovely warm on its own.
Frequently Asked Questions
Ingredients and Method
Can I use fresh strawberries instead of frozen?
Yes, fresh strawberries work well. However, they cook a little faster, so you may need slightly less baking time. Start checking at about 30 minutes.
Do I need to thaw frozen strawberries first?
No. In fact, they go into the dish straight from the freezer. They soften as the crumble bakes, which is why the full 35 to 40 minutes matters.
Is this strawberry crumble gluten free?
It is, as long as your flour blend and your oats are both labelled gluten free. Oats are naturally free of gluten but are often processed alongside wheat.
Can I make it without oats?
You can. Simply replace the oats with more gluten-free flour, and you will get a finer, more traditional crumble topping.
Baking and Storage
What if the crumble looks too juicy while baking?
Sprinkle about 1 teaspoon of flour over the bubbling fruit and continue baking. Then let it rest the full 10 minutes before serving.
Why is my crumble topping dry or powdery?
Usually there was not quite enough butter worked in. So rub it in until every bit of flour looks damp, and add another spoonful of butter if needed.
How long does it keep?
Up to 3 days covered in the fridge. After that the topping softens too much, so it is best eaten fresh.
Can I freeze it?
Freezing is not recommended, because the topping may lose its texture. Instead, bake a smaller dish if you will not finish it in a few days.
Ingredients
Strawberry Filling
- 4 cups strawberries frozen or fresh
- 2 tablespoons sugar up to 3 tablespoons if the strawberries are very tart
- 1 tablespoon gluten-free flour
- 1 teaspoon vanilla extract optional
- 1 teaspoon lemon juice optional
Crumble Topping
- 3/4 cup gluten-free flour
- 3/4 cup oats
- 3 tablespoons sugar
- 5 tablespoons butter melted or softened
- 1 pinch salt
Instructions
- Preheat the oven to 180°C / 350°F.
- In a large bowl combine the strawberries, sugar, gluten-free flour, vanilla extract, and lemon juice if using.
- Transfer the strawberry mixture to an 8-inch (20 cm) baking dish. The strawberries do not need to be thawed.
- In another bowl combine the oats, gluten-free flour, sugar, and salt.
- Add the butter and rub the mixture together with your fingers until crumbly.
- Sprinkle the crumble topping evenly over the strawberries.
- Bake for 35 to 40 minutes until the topping is golden and the strawberries are bubbling around the edges.
- Remove from the oven and allow the crumble to rest for about 10 minutes before serving so the filling thickens.
