Lemon Blueberry Sheet Cake with Lemon Cream Cheese Frosting

🫐 Lemon Blueberry Sheet Cake with Lemon Cream Cheese Frosting

📝 Ingredients

🍰 Cake

  • 2½ cups (315 g) all-purpose flour
  • 2 tsp baking powder
  • ½ tsp baking soda
  • ½ tsp salt
  • 1 cup (225 g) unsalted butter, softened
  • 1½ cups (300 g) granulated sugar
  • 4 large eggs
  • 1 tsp vanilla extract
  • 2 tbsp fresh lemon juice
  • 1 tbsp lemon zest
  • ½ cup (120 ml) milk
  • 2 cups (300 g) fresh blueberries (tossed with 1 tbsp flour)

🍋 Lemon Cream Cheese Frosting

  • 8 oz (225 g) cream cheese, softened
  • ½ cup (115 g) unsalted butter, softened
  • 3½–4 cups (420–480 g) powdered sugar
  • 2 tbsp fresh lemon juice
  • 1 tsp lemon zest
  • 1 tsp vanilla extract

✨ Garnish

  • Fresh blueberries
  • Lemon zest

👩‍🍳 Instructions

1. Prepare

  • Preheat oven to 350°F (175°C).
  • Grease and line a 9×13-inch (23×33 cm) baking pan.

2. Make the Batter

  1. Whisk together flour, baking powder, baking soda, and salt.
  2. In another bowl, beat butter and sugar until light and fluffy (3–4 minutes).
  3. Beat in eggs one at a time.
  4. Mix in vanilla, lemon juice, and lemon zest.
  5. Add the dry ingredients in three additions, alternating with the milk.
  6. Fold in the floured blueberries gently.

3. Bake

  • Spread batter evenly into the prepared pan.
  • Sprinkle a few extra blueberries on top.
  • Bake for 35–40 minutes, or until a toothpick inserted in the center comes out clean.
  • Cool completely before frosting.

4. Make the Frosting

  1. Beat cream cheese and butter until smooth.
  2. Gradually add powdered sugar.
  3. Mix in lemon juice, lemon zest, and vanilla.
  4. Beat until fluffy and creamy.

5. Decorate

  • Spread frosting evenly over the cooled cake.
  • Garnish with fresh blueberries and a little lemon zest.

🍽️ Tips

  • Tossing the blueberries in flour helps prevent them from sinking.
  • Refrigerate the cake for 20–30 minutes before slicing for clean squares.
  • Store covered in the refrigerator for up to 5 days.

💙 Moist, buttery, bursting with juicy blueberries, and topped with tangy lemon cream cheese frosting—this cake is perfect for spring, summer, or any special occasion!

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