If you’re reading this and fresh blueberry season is over, don’t fret! This recipe is great for grocery store blueberries as well as frozen blueberries that have been thawed. While in-season berries are always best, the moist cake and flavorful crumb topping do a lot of the heavy lifting, so you can make this any time of year.
Makes one 8-inch square cake
Ingredients
Crumb Topping
- ⅓ cup (43 grams) all-purpose flour
- ¼ cup (50 grams) granulated sugar
- ¼ cup (54 grams) brown sugar
- ¼ teaspoon salt
- 4 tablespoons (57 grams) unsalted butter, softened
- ½ cup (65 grams) chopped walnuts
Blueberry Cake
- 2 cups (260 grams) all-purpose flour
- 2 teaspoons baking powder
- ½ teaspoon ground cinnamon
- ½ teaspoon salt
- 4 tablespoons (57 grams) unsalted butter, softened
- ¾ cup (150 grams) granulated sugar
- Zest of 1 lemon
- 1 large egg
- 1 teaspoon vanilla extract
- ½ cup (120 grams) milk
- ½ cup (65 grams) walnuts, chopped fine
- 1 pint (300 grams) fresh blueberries
Instructions
Make the Cake
- Preheat the oven to 350°F. Grease and flour an 8-inch square or 9-inch round baking dish and line it with parchment paper.
- In a small bowl, combine the flour, sugars and salt. Using your fingers, a pastry cutter or a fork, cut in the butter until the mixture resembles coarse crumbs. Add in the walnuts and set the mixture aside.
- In a medium mixing bowl, whisk the flour, baking powder, cinnamon and salt to combine and set aside.
- In a bowl fitted for a stand mixer or in a large mixing bowl with a hand mixer, cream the butter, sugar, and lemon zest until light and fluffy, about 3 minutes. Add the egg and vanilla and beat until combined.
- Alternate adding the dry ingredients and the milk in 2 to 3 batches, scraping down the sides of the bowl as necessary. The batter will be thick. Fold the blueberries into the cake batter.
- Pour the batter into the prepared pan and then sprinkle the crumb topping on top. Bake for about 40 – 50 minutes or until a toothpick inserted comes out clean. Allow the cake to cool before serving. Leftovers can be covered in plastic or foil for up to 2 days.
