This Blueberry Crumb Cake is soft, buttery, and bursting with juicy blueberries in every bite. Finished with a thick cinnamon crumble topping. Enjoy it warm with a scoop of vanilla ice cream for dessert or serve a slice alongside your morning coffee or afternoon tea. It's completely eggless, easy to make dairy-free, and everything you love about a classic crumb cake.
280gAll Purpose Flour plus 1tbsp extra for coating blueberries
8g (1 tbsp)Corn Starch
1/4tspBaking Soda
1 + 1/4tspBaking Powder
1/4tspSalt
110gButtermelted; see notes for options
180gBlueberriesFresh or Frozen
Crumble Topping (Make Ahead)
35gButtermelted; see notes for options
65gAll Purpose Flour
75gLight Brown Sugaror castor sugar
Pinch of Salt
1/8tsp Cinnamon Powderoptional
Instructions
For the Crumble Topping
Make the crumble topping first and chill it in the refrigerator while you prepare the cake batter. This helps create a crisp, crumbly topping that holds its shape during baking.
Preheat the oven to 350°F (180°C). Grease and line the base of an 8-inch (20cm) round springform baking pan with parchment paper.
In a medium bowl, whisk together the flour, sugar, cinnamon, and salt. Pour in the melted butter and mix with a fork until large crumbs form. Place the bowl in the refrigerator while you prepare the cake batter.
For the Blueberry Cake
In a small bowl toss the blueberries with 1 tablespoon of flour and set it aside.
In a large mixing bowl, whisk together the milk and lemon juice (or vinegar). Let it sit for 5 minutes to make a homemade buttermilk. Add the sugar and vanilla extract and whisk until combined.
Add the dry ingredients (flour, corn starch, baking power, baking soda and salt) and gently whisk until just combined.
Pour in the melted butter and mix until you have a smooth, lump-free batter. Be careful not to over mix, as this can make the cake dense.
This helps keep them evenly distributed throughout the cake instead of sinking to the bottom.
Gently fold the blueberries into the batter until evenly distributed.
Pour the batter into the prepared baking pan and spread it into an even layer using an offset spatula. Sprinkle the crumble topping evenly over the batter.
Bake for 50–55 minutes, or until the crumble is golden brown and a toothpick inserted into the center comes out clean or with a few moist crumbs.
Let the cake cool before dusting with powdered sugar.
Store the cake in an airtight container at room temperature for up to 2 days or in the refrigerator for up to 5 days. Bring to room temperature or warm slightly before serving.
Notes
Cup vs weighing scale: The US customary cup measurement serves as a rough estimate, as it can have uncertainties, so for precise results, it's recommended to weigh your ingredients using a digital scale in grams.
Before you start to make any recipe, measure and prepare your ingredients so the process will go smoothly and easily.
For teaspoon (tsp) and tablespoon (tbsp) measurements, please use measuring spoons and not the type of spoons you eat with for accuracy.
Milk: You can use any dairy-free unsweetened milk (like almond, soy, oat) or dairy based whole milk.
Butter: Dairy-free salted butter sticks or any salted butter of your choice. For dairy-free: Use vegan butter sticks like Miyoko’s, Earth Balance, or Country Crock Plant Butter.
Sugar: Cane sugar can be substituted with granulated sugar or castor sugar. Ensure the sugar is vegan-friendly (some sugars are processed with bone char) or organic cane sugar.