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White oval dish with half eaten blueberry crumble, a silver spoon inside, white surface

Quick & Easy Blueberry Crumble

As the title implies, this is a simple, easy-to-put-together dessert that can be ready in under an hour. It consists of a layer of juicy blueberries with a crisp topping that you can make ahead.  How's that for convenience? And I added a variation with coconut and pecans too. You can't go wrong with crumbles. Or blueberries.

  • Total Time: 55 minutes
  • Yield: 6 servings



For the crumble:

  • 1 1/4 cups all-purpose flour
  • Pinch of salt
  • 1/2 cup sugar
  • 1/2 cup butter, cold

For the blueberries:

  • 4 cups fresh or frozen blueberries
  • 2 tablespoons light brown sugar
  • 1/2 teaspoon lemon zest
  • 2 tablespoons fresh lemon juice
  • 1/4 teaspoon vanilla extract
  • Large pinch of ground cinnamon


  1. Preheat the oven to 350°F/180°C

For the blueberries:

  1. Have ready an oven-proof glass or ceramic dish (I use an 8x11-inch oval one, but a 9-inch round or square baking dish also works).
  2. Scatter blueberries in the dish and sprinkle with brown sugar. 
  3. Grate zest over them and drizzle the lemon juice. 
  4. Mix lightly with a spoon. 

For the crumble:

  1. Mix flour, salt, and sugar in a large mixing bowl. 
  2. Add cold butter in pieces and integrate with your hands until grainy and the butter is the size of peas. You can do this in a food processor; make sure you stop processing when it still has butter bits. Don’t turn it into a paste. 
  3. If not used immediately, cover and keep refrigerated for up to a week. Or frozen for a month. 
  4. Top the blueberries with this mixture. It will cover the surface irregularly and the edges will not have much. That’s fine. 
  5. Bake for about 40 minutes, until dry, golden, and the blueberry juices are bubbling. 
  6. Let cool on a wire rack until warm and eat with some whipped cream or vanilla ice cream. 
  7. Keep leftovers refrigerated, covered in plastic wrap, and warm slightly before eating.


Organization: always read the recipe first and make sure you have all the ingredients, at the right temperatures, and also the rest of the equipment and space to make it. This will make the process so much easier!

Thicker fruit filling: following some comments on similar recipes (Blueberry Dump Cake and Blueberry Cobbler recipe) you can add a teaspoon or two of cornstarch to the blueberry mixture, especially if using frozen berries which tend to release more liquid. Some of my readers felt that without a thickening agent the blueberry filling was not firm enough. 

Lemon: the amounts of juice and zest are easily customizable. Lemon zest is stronger and makes desserts more bitter, so you can use an extra squeeze of fresh lemon juice and reduce the zest, for example. Just follow your taste buds.

Coconut crumble: mix 1/2 cup flour with 3/4 cup shredded unsweetened coconut, 1/2 cup light brown sugar, and 1/4 teaspoon ground cinnamon in a medium bowl. Add 4oz (120g) of cold butter, in pieces, and work with your hands or a pastry cutter until it's the size of peas. Sprinkle on top of the blueberries and bake as instructed above. 

Ratio: these types of desserts can be adjusted to your personal taste when it comes to the proportion of fruit and topping you use. I like more fruit and a crisper topping, but for example, my father likes a more floury topping (I know!) so I use less butter when he's coming over. Play around until you find what works for you and your family.

Pie: if you add a pie crust you can easily make a fantastic blueberry crumble pie with this recipe. I like the Perfect Flaky Pie Crust recipe (with shortening and barely sweet), or the Sweet Shortcrust Pastry recipe if you want a more French-style, all-butter version.

Bars: you can easily make blueberry crumble bars with this recipe if you add a base layer. This can be a shortbread base (like the one in the Apple Pie Crumb Bars) or a cookie crust base like we use in the Baked Cheesecake recipe.

  • Author: Paula Montenegro
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Category: Desserts
  • Method: Baking
  • Cuisine: International

Keywords: blueberry crumble