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Homemade lemon sheet cake with cream cheese frosting and lemon zest on a white kitchen table, photographed from above.

Lemon Sheet Cake

A moist and tangy lemon sheet cake made with buttermilk, sour cream, and fresh lemon juice, topped with a creamy lemon glaze or frosting.
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Course: Dessert
Cuisine: American
Prep Time: 15 minutes
Cook Time: 30 minutes
Cooling Time: 15 minutes
Total Time: 55 minutes
Servings: 12 slices
Calories: 320kcal
Author: Alyssa Coleman
Cost: $10–$12

Equipment

  • 1 9x13 inch sheet cake pan or half sheet pan
  • 1 Electric/stand mixer with paddle attachment
  • 2–3 Mixing bowls medium & large
  • 1 Whisk
  • 1 Rubber spatula
  • Set Measuring cups/spoons
  • 1 Microplane or fine grater for lemon zest
  • 1 Toothpick for doneness test
  • 1 Cooling rack

Ingredients

  • 2.5 cups All-purpose flour sifted
  • 1.5 cups Granulated sugar
  • 1 cup Unsalted butter softened
  • 3 large Eggs room temperature
  • 1 cup Buttermilk room temperature
  • 0.5 cup Sour cream room temperature
  • 2–3 whole Lemons juice + zest
  • 2 teaspoon Baking powder
  • 0.5 teaspoon Baking soda
  • 0.5 teaspoon Salt
  • 1 teaspoon Vanilla extract
  • 3 cups Powdered sugar for frosting
  • 0.5 cup Heavy cream
  • 4 oz Cream cheese softened

Instructions

  • Preheat oven to 350°F and grease pan.
  • Cream butter + sugar until fluffy.
  • Add eggs, lemon juice, zest, and vanilla.
  • Whisk flour, baking powder, soda, salt.
  • Alternate dry mix and buttermilk into batter.
  • Fold in sour cream gently.
  • Pour batter into pan, bake 25–30 min.
  • Beat cream cheese + butter, add sugar.
  • Mix in lemon juice + cream for texture.
  • Spread frosting over cake, garnish with zest.

Notes

Chill before slicing for clean cuts. Optionally top with candied lemon slices for extra presentation.

Nutrition

Serving: 100g | Calories: 320kcal | Carbohydrates: 45g | Protein: 4g | Fat: 15g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Cholesterol: 65mg | Sodium: 190mg | Potassium: 80mg | Fiber: 1g | Sugar: 30g | Vitamin A: 450IU | Vitamin C: 2mg | Calcium: 40mg | Iron: 1mg