If you’re looking for a light, fresh, and crowd-pleasing dessert, this Easy Lemon Blueberry Sheet Cake is exactly what you need. With its soft, fluffy crumb, bursts of juicy blueberries, and bright citrus flavor, this cake is the perfect balance of sweet and tangy.

Ideal for spring and summer gatherings, brunches, or simple family desserts, this sheet cake is easy to make, easy to serve, and absolutely irresistible.

Why You’ll Love This Lemon Blueberry Sheet Cake

Soft and moist texture

Bright lemon flavor
Juicy blueberries in every bite
Easy to make in one pan

Perfect for feeding a crowd

What Is a Lemon Blueberry Sheet Cake?

A lemon blueberry sheet cake is a simple, single-layer cake baked in a rectangular pan. It combines:

Fresh lemon juice and zest for citrus brightness

Blueberries for natural sweetness
A soft, tender crumb

It’s often topped with a glaze or light frosting, making it both elegant and easy.

Ingredients for Lemon Blueberry Sheet Cake

Dry Ingredients:

2½ cups all-purpose flour
2 teaspoons baking powder
½ teaspoon baking soda

½ teaspoon salt

Wet Ingredients:

1 cup granulated sugar (or maple sugar alternative)
½ cup coconut oil or butter (melted)

3 large eggs
1 cup milk (or dairy-free alternative)
¼ cup fresh lemon juice

1 tablespoon lemon zest
1 teaspoon vanilla extract

Add-Ins:

1½ cups fresh or frozen blueberries

1 tablespoon flour (for coating blueberries)

Optional Lemon Glaze:

1 cup powdered sugar
2–3 tablespoons lemon juice

How to Make Lemon Blueberry Sheet Cake

Step 1: Preheat and Prep

Preheat oven to 350°F (175°C)
Grease or line a 9×13-inch baking pan

Step 2: Mix Dry Ingredients

In a bowl, whisk together flour, baking powder, baking soda, and salt

Step 3: Mix Wet Ingredients

In another bowl, whisk:
- Sugar
- Melted coconut oil or butter
- Eggs
- Milk
- Lemon juice
- Lemon zest
- Vanilla

Step 4: Combine

Gradually add dry ingredients to wet ingredients

Mix until just combined (do not overmix)

Step 5: Add Blueberries

Toss blueberries in flour
Gently fold into batter

Step 6: Bake

Pour batter into prepared pan
Bake for 30–35 minutes or until a toothpick comes out clean

Step 7: Add Glaze

Let cake cool

Drizzle with lemon glaze if desired

Tips for the Best Lemon Blueberry Cake

Don’t overmix batter – keeps cake tender
Use fresh lemon juice for best flavor

Coat blueberries in flour – prevents sinking
Check for doneness early
Let cake cool before glazing

Is This Cake Healthy?

This cake can be made healthier with simple swaps:

Use coconut oil instead of butter
Replace sugar with maple sugar or reduce amount

Use dairy-free milk

It’s a lighter dessert option compared to heavy frosted cakes.

Variations to Try

1. Lemon Blueberry Yogurt Cake

Replace part of the milk with Greek yogurt.

2. Vegan Version

Use flax eggs and plant-based milk.

3. Gluten-Free Cake

Use a 1:1 gluten-free flour blend.

4. Cream Cheese Frosting Version

Top with light cream cheese frosting instead of glaze.

5. Mixed Berry Cake

Add raspberries or strawberries.

What to Serve with Lemon Blueberry Cake

Coffee or tea
Fresh fruit

Whipped cream
Vanilla ice cream

Storage and Shelf Life

Room Temperature:

Store for up to 2 days

Refrigeration:

Store up to 5 days

Freezing:

Freeze slices for up to 2 months

Common Mistakes to Avoid

Overbaking → dry cake

Skipping zest → less lemon flavor
Adding too many blueberries → dense texture
Not greasing pan properly

Frequently Asked Questions

Can I use frozen blueberries?

Yes, but don’t thaw them before adding.

Can I make this ahead?

Yes, it stays moist for days.

What pan size works best?

9×13-inch is ideal for even baking.

Can I reduce sugar?

Yes, adjust to taste without affecting texture too much.

Final Thoughts

This Easy Lemon Blueberry Sheet Cake is the perfect combination of bright citrus flavor and sweet berry goodness. It’s simple to make, easy to serve, and always a crowd favorite.

Whether you’re baking for a special occasion or just want a fresh, homemade dessert, this cake delivers every time.

Easy Lemon Blueberry Sheet Cake (Moist, Bright & Perfect for Any Occasion)

Author: WAFA LI

Print Recipe

Instructions

1. Prep:

Preheat oven to 350°F (175°C). Grease a 9×13″ sheet pan; line with parchment.
Toss blueberries with 1 tbsp flour; set aside.

2. Make batter:

Whisk flour, baking powder, and salt in a bowl.

Beat butter and sugar until light (~3 min). Add eggs one at a time, then vanilla and lemon zest.
Alternate adding dry ingredients and buttermilk, beginning and ending with dry. Mix until just combined.
Gently stir in lemon juice (batter will be thin—normal!). Fold in floured blueberries.

3. Bake:

Pour batter into pan. Bake 28–32 minutes until golden and toothpick comes out clean (avoid blueberry pockets). Cool completely in pan.

4. Glaze & serve:

Whisk powdered sugar and lemon juice until smooth. Drizzle over cooled cake. Let set 15 minutes before slicing.

💡 Pro Tips for Perfection:
✅ Flour the blueberries—prevents sinking to bottom (critical for even distribution!).
✅ Don’t overmix—fold gently to keep cake tender.
✅ Blood sugar friendly (you love this!):
→ Replace sugars with monk fruit blend (1:1 swap)
→ Use sugar-free powdered erythritol for glaze
→ Net carbs: ~14g/slice
✅ Keto version:
→ 2 cups almond flour + ¼ cup coconut flour + 1 tbsp xanthan gum
→ 1 cup monk fruit blend
→ Sugar-free glaze (powdered erythritol + lemon juice)
→ Net carbs: ~5g/slice
✅ Extra decadence:
→ Swirl ¼ cup cream cheese into batter before baking (you love cream cheese!)
→ Serve with whipped cream sweetened with vanilla stevia
✅ Make ahead: Cake keeps 3 days room temp (cover tightly), 5 days refrigerated, or freeze unfrosted slices 3 months.

Prep Time & Nutrition (per slice, 16 servings):