Looking for a blueberry cake that’s both simple and delicious? This buttermilk blueberry cake is moist, full of flavor and easy to prepare any time of year. The buttermilk keeps the crumb tender while citrus zest brightens every bite. Serve it for breakfast, as a snack with tea, or as a light dessert — it disappears fast.
This recipe is forgiving and convenient: you can make the batter ahead and refrigerate or freeze it for a quick morning bake. It’s a versatile everyday cake — not overly sweet, bursting with fruit, and perfect whenever you want a homemade treat. If you like, pair it with a refreshing peach lemonade or any favorite cold drink to balance the richness.
You’ll have this cake ready in under an hour, and it’s the kind of baked good that draws family members to the kitchen for one more slice. Use fresh blueberries in season or frozen berries off-season — both work well.
How to make Blueberry cake recipe
Ingredients you need
- Unsalted butter: ½ cup, room temperature. Softened butter creamed with sugar gives a light, tender crumb.
- Lemon zest: Zest from 1 lemon to add bright citrus aroma.
- Orange zest: Zest from 1 orange to complement the lemon and blueberries.
- Powdered sugar: 1 cup. Use confectioners’ sugar for a smooth, delicate texture.
- Large egg: 1, room temperature, for structure and moisture.
- Vanilla extract: 1 tsp to round out the flavors.
- Cake flour: 2 cups total; set aside about 3 tablespoons to toss with the blueberries so they don’t sink.
- Baking powder: 2 tsp for lift.
- Salt: 1 tsp to balance sweetness.
- Coconut flakes: ¼ cup (optional) for subtle texture and flavor.
- Blueberries: 2 cups fresh and firm (or frozen — see note).
- Buttermilk: ½ cup, for moisture and a gentle tang.
- Sugar for sprinkling: a tablespoon or two to create a light crunchy top.
Substitutes
If you don’t have buttermilk, make a quick substitute: add 2 tablespoons lemon juice or white vinegar to a ½ cup measuring cup, then fill with room-temperature whole milk and let stand for five minutes. You can use frozen blueberries straight from the freezer; fold them into the batter frozen and add a few extra minutes to baking time as needed.
Instructions to make the blueberry buttermilk cake
- Preheat the oven to 350°F (175°C). Grease a 9″ square baking dish or similar casserole with butter.
- Cream the softened butter and powdered sugar together until light and fluffy. Thorough creaming helps create a tender texture. Mix in the lemon and orange zest and the vanilla extract.
- Add the egg and beat until fully combined. Stir in the coconut flakes if using.
- Toss the blueberries with the reserved 3 tablespoons of cake flour to coat them evenly. In a separate bowl, whisk together the remaining cake flour, baking powder and salt.
- Add the dry ingredients to the butter mixture in batches, alternating with the buttermilk, until the batter is smooth. Start and end with the flour mixture for best texture.
- Gently fold in the floured blueberries so they stay distributed through the batter.
- Spread the batter into the prepared pan and sprinkle the top lightly with sugar.
- Bake for 35–45 minutes at 350°F. Check the center with a toothpick — if it comes out clean or with a few moist crumbs, the cake is done. If the cake needs more time, bake another 5–10 minutes and recheck.
- Let the cake cool at least 15 minutes before serving. Cooling completely will make cleaner slices; if the cake crumbles slightly, it’s still delicious and can be served with a spoon or fork.
Tips for a great buttermilk blueberry cake
- Toss blueberries with a little flour to help prevent them from sinking during baking.
- Use a mix of berries or sliced strawberries for variety and color.
- Top with softly whipped cream for a festive finish, or a simple dusting of powdered sugar for everyday servings.
- In colder months try diced apples with cinnamon in place of berries for a fall-flavored bake.
- Rhubarb pairs well with the cake’s tangy buttermilk base if you prefer a more tart filling.
- Plain yogurt can substitute for buttermilk in a pinch (use 1 cup yogurt for ½ cup buttermilk and thin with a little milk until slightly pourable).
Nutrition (approximate)
Per slice (recipe yields about 9 slices): ~294 kcal, 40 g carbohydrates, 13 g fat, 5 g protein. Nutritional values are approximate and depend on exact ingredient brands and portion sizes.
Final notes
This batter makes a flexible base for many variations. Try adding a streusel topping, a glaze of lemon icing, or fold in a handful of chopped nuts for extra texture. Enjoy this easy, tender buttermilk blueberry cake whenever you want a homemade, fruit-forward treat.