This Lemon Blueberry Loaf Cake with Glaze is a soft, moist loaf cake filled with fresh lemon flavor and juicy blueberries. It is simple to make, beautiful to serve, and perfect for breakfast, brunch, dessert, or an afternoon coffee break.
What makes this recipe so worth trying is the balance of flavors. The lemon keeps the loaf bright and fresh, while the blueberries add little bursts of sweetness in every bite. Finished with a sweet lemon glaze, this loaf feels bakery-style but is easy enough to make at home.
Why You’ll Love This Recipe
- Bright, fresh lemon flavor
- Soft, moist, tender texture
- Juicy blueberries in every slice
- Easy to make with simple ingredients
- Perfect for brunch, dessert, or snacking
- Freezer-friendly and make-ahead friendly
Ingredients You’ll Need
For the loaf cake
- 1/2 cup unsalted butter, softened
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- Zest of 1 to 2 lemons
- 2 tablespoons fresh lemon juice
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking powder
- 1/4 teaspoon salt
- 1/2 cup milk or buttermilk
- 1 to 1 1/2 cups fresh or frozen blueberries
For the glaze
- 1 cup powdered sugar
- 2 to 3 tablespoons fresh lemon juice
Optional add-ins
- 1 teaspoon poppy seeds
- 1/2 teaspoon lemon extract
- Extra lemon zest for topping
- Sliced almonds for texture
Ingredient Notes
- Fresh lemon juice and zest: give the best bright citrus flavor.
- Blueberries: fresh or frozen both work. If using frozen, do not thaw first.
- Buttermilk: gives a softer, more tender crumb, but regular milk also works.
- Softened butter: helps create a light, fluffy base for the loaf.
- Powdered sugar glaze: adds sweetness and boosts the lemon flavor.
How to Make
1. Prepare the pan
Preheat your oven to 350°F. Grease a loaf pan and line it with parchment paper if desired.
2. Cream the butter and sugar
In a large bowl, beat the softened butter and sugar until light and fluffy.
3. Add the eggs and flavoring
Add the eggs one at a time, mixing well after each addition. Mix in the vanilla, lemon zest, and lemon juice.
4. Mix the dry ingredients
In a separate bowl, whisk together the flour, baking powder, and salt.
5. Combine the batter
Add the dry ingredients to the wet ingredients, alternating with the milk or buttermilk. Mix until just combined.
6. Fold in the blueberries
Gently fold the blueberries into the batter. Do not overmix.
7. Bake
Pour the batter into the prepared loaf pan and smooth the top. Bake for 50 to 60 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
8. Cool
Let the loaf cool in the pan for 10 to 15 minutes, then transfer it to a wire rack to cool completely.
9. Make the glaze
Whisk together the powdered sugar and lemon juice until smooth and pourable.
10. Glaze and serve
Drizzle the glaze over the cooled loaf. Let it set slightly, then slice and serve.

Tips for Best Results
- Use room temperature ingredients for a smoother batter.
- Do not overmix once the flour is added, or the loaf may turn dense.
- Toss the blueberries in a little flour if you want to help reduce sinking.
- If the top browns too quickly, loosely cover it with foil near the end of baking.
- Let the loaf cool completely before glazing so the glaze stays on top instead of melting in.
Variations / Substitutions
- Swap blueberries for raspberries or blackberries.
- Add poppy seeds for a lemon poppy seed version.
- Use Greek yogurt instead of buttermilk for a richer texture.
- Add a cream cheese glaze instead of lemon glaze.
- Use orange zest with the lemon for a mixed citrus loaf.
What to Serve With It
This loaf cake pairs well with:
- Coffee
- Hot tea
- Fresh berries
- Vanilla yogurt
- Whipped cream
- Fruit salad
- Lemon curd
Storage and Reheating
- Room temperature: store in an airtight container for up to 2 days.
- Refrigerator: store for up to 5 days.
- Freezer: wrap tightly and freeze for up to 2 months.
- To serve after chilling: let slices sit at room temperature for a few minutes before eating.
- Reheating: usually not needed, but a few seconds in the microwave can soften a cold slice.
FAQ
Can I use frozen blueberries?
Yes. Use them straight from the freezer and do not thaw them first.
Why did my blueberries sink?
This can happen if the batter is too thin or the berries are too heavy. Tossing them in a little flour may help.
Can I make this loaf ahead of time?
Yes. It keeps very well and is a great make-ahead bake.
Can I skip the glaze?
Yes, but the glaze adds extra lemon flavor and gives the loaf a prettier finish.
How do I know when the loaf is done?
Insert a toothpick into the center. If it comes out clean or with a few moist crumbs, it is ready.
Can I freeze Lemon Blueberry Loaf Cake?
Yes. Wrap it tightly and freeze it whole or in slices.
Conclusion
This Lemon Blueberry Loaf Cake with Glaze is a fresh, soft, and easy bake that works beautifully for brunch, dessert, or a sweet snack. It has the perfect mix of bright lemon flavor, juicy blueberries, and a tender crumb.
If you want a loaf cake that feels simple, homemade, and always delicious, this recipe is a great one to keep on repeat.