This Glazed Blueberry Loaf Cake is soft, moist, and bursting with juicy blueberries in every slice. A little lemon zest in the batter adds a bright citrus flavor that pairs beautifully with the berries, while the simple lemon glaze gives the finished loaf a sweet, fresh, bakery-style touch.
It’s easy enough for a casual breakfast or afternoon coffee break, yet beautiful enough to serve when guests come over. Best of all, you don’t need any special equipment or complicated decorating skills.
Ingredients
For the Blueberry Loaf
- 1 3/4 cups all-purpose flour
- 2 teaspoons baking powder
- 1/2 teaspoon salt
- 1 cup fresh blueberries
- 1/2 cup unsalted butter, softened
- 3/4 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1 tablespoon fresh lemon zest
- 2 tablespoons fresh lemon juice
- 1/2 cup plain Greek yogurt or sour cream
- 1/4 cup milk
For the Lemon Glaze
- 1 cup powdered sugar
- 2–3 tablespoons fresh lemon juice
- 1/2 teaspoon lemon zest, optional
Instructions
1. Prepare the Pan
Preheat your oven to 350°F (175°C).
Grease a 9 × 5-inch loaf pan and line it with parchment paper, leaving some parchment hanging over the sides. This makes the finished loaf much easier to remove.
2. Prepare the Blueberries
Place the blueberries in a small bowl and toss them gently with about 1 tablespoon of the flour from the recipe.
This light coating can help keep the berries more evenly distributed throughout the batter instead of all sinking toward the bottom.
Set aside.
3. Mix the Dry Ingredients
In a medium bowl, whisk together the remaining flour, baking powder, and salt.
Set aside.
4. Cream the Butter and Sugar
In a large bowl, beat the softened butter and sugar together until light and creamy, about 2–3 minutes.
Add the eggs one at a time, beating well after each addition.
Mix in the vanilla, lemon zest, and lemon juice.
5. Add the Yogurt and Flour
Add the yogurt or sour cream and milk, then gently mix.
Gradually add the dry ingredients and stir just until combined.
Do not overmix the batter. A few small lumps are perfectly fine.
6. Fold in the Blueberries
Gently fold the flour-coated blueberries into the batter using a spatula.
Be careful not to crush the berries, as excessive stirring can cause the batter to turn purple.
7. Bake the Loaf
Pour the batter into the prepared loaf pan and smooth the top.
Bake for approximately 50–60 minutes, or until the top is golden and a toothpick inserted into the center comes out clean or with a few moist crumbs.
If the top begins to brown too quickly, loosely cover the loaf with foil during the final 15 minutes.
8. Cool Completely
Let the cake cool in the pan for about 10–15 minutes.
Use the parchment paper to carefully lift the loaf from the pan and transfer it to a wire rack.
Allow it to cool completely before adding the glaze. If the cake is warm, the glaze may melt and run off instead of forming a beautiful coating.
Make the Lemon Glaze
Place the powdered sugar in a small bowl.
Add 2 tablespoons of lemon juice and whisk until smooth.
If the glaze is too thick, add a little more lemon juice, about 1 teaspoon at a time. If it’s too thin, add a little more powdered sugar.
Drizzle the glaze generously over the completely cooled blueberry loaf.
Allow the glaze to set for several minutes before slicing.
Tips for the Best Blueberry Loaf Cake
Don’t overmix the batter. Overmixing can develop too much gluten and make the loaf dense instead of tender.
Use room-temperature ingredients. Softened butter, eggs, and yogurt combine more smoothly and help create a consistent texture.
Fresh or frozen blueberries work. If using frozen blueberries, add them straight from the freezer rather than thawing them first.
Coat the berries lightly with flour. This can help them stay suspended throughout the loaf.
Let the loaf cool before glazing. A completely cooled cake gives you a thicker, more attractive glaze.
Check the center carefully. Loaf cakes are relatively deep, so the outside can look finished while the center still needs more time.
Add a Crunchy Topping
For extra texture, sprinkle a little coarse sugar over the batter before baking.
You can also add a simple streusel topping made with:
- 1/4 cup all-purpose flour
- 2 tablespoons brown sugar
- 2 tablespoons butter
- 1/4 teaspoon cinnamon
Rub the ingredients together until crumbly and sprinkle over the batter before placing the loaf in the oven.
Can I Use Frozen Blueberries?
Yes. Frozen blueberries are an excellent option when fresh berries aren’t available.
Add them directly to the batter while frozen. Avoid thawing them first because thawed berries can release excess liquid and discolor the batter.
The baking time may vary slightly, so check the center with a toothpick before removing the loaf from the oven.
How to Store It
Store the glazed loaf in an airtight container at room temperature for up to 2 days.
For longer storage, refrigerate it for up to about 4–5 days. Allow slices to sit at room temperature for a few minutes before serving for the best texture.
You can also freeze the loaf without the glaze. Wrap it tightly and freeze for up to about 2 months. Thaw completely, then add fresh glaze before serving.
Serving Ideas
This blueberry loaf is delicious on its own, but you can serve it with:
- Fresh blueberries
- Whipped cream
- Greek yogurt
- A scoop of vanilla ice cream
- Fresh lemon slices
- A cup of coffee or tea
Final Thoughts
This Glazed Blueberry Loaf Cake is a simple and satisfying bake with everything you want in a homemade fruit cake: a soft crumb, juicy blueberries, bright lemon flavor, and a sweet glaze.
It’s perfect for breakfast, brunch, afternoon tea, or dessert. Once you try this easy loaf, you’ll want to keep the recipe handy whenever you have fresh or frozen blueberries waiting in the kitchen.