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Lemon Cake Bars

Thick and easy, these moist Lemon Cake Bars are bursting with citrus flavor. Topped with a luscious lemon buttercream frosting, you'll LOVE this recipe!

Prep Time
15 mins
Cook Time
15 mins
Total Time
35 mins
Servings: 36 Bars
Calories: 157 kcal
Course: Cake
Cuisine: American

Ingredients

For the cake
  • 1 cup unsalted butter softened
  • 1 cup granulated sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 lemon juiced and zested
  • ½ cup sour cream
  • 2 ⅔ cup all-purpose flour
  • 1 teaspoon baking powder
  • ½ teaspoon baking soda
  • ½ teaspoon kosher salt
For the frosting
  • ½ cup unsalted butter softened
  • 2 cups powdered sugar
  • 1 lemon zested and juiced
  • 1 Tablespoon heavy whipping cream

Instructions

    Cup of Yum
  1. Preheat oven to 350 degrees F. Line a 13x9-inch baking dish with parchment paper or spray with non-stick baking spray (or use my homemade cake release).
  2. In a large mixing bowl, beat softened butter with sugar until creamy. Add in eggs, vanilla, sour cream, and lemon juice, scraping down the sides of the bowl as needed.
  3. Using a wooden spoon (so you do not over mix), add in flour, lemon zest, baking powder, baking soda, and kosher salt.
  4. Spread batter in the prepared baking dish. Bake for 18-20 minutes, remove and cool on wire rack.
  5. For the frosting, beat softened butter with powdered sugar, lemon juice, lemon zest, and heavy cream. Beat until light and fluffy, for about 3-5 minutes, scraping down the sides of the mixing bowl as needed.
  6. Spread frosting over cooled cake bars. Slice and enjoy.

Notes

  • Start with softened butter.
  • Do not over mix batter, use a wooden spoon to incorporate dry ingredients.
  • Use fresh squeezed lemon (not bottled lemon concentrate)
  • Cool completely before adding the frosting!

Nutrition Information

Calories 157kcal (8%) Carbohydrates 19g (6%) Protein 1g (2%) Fat 9g (14%) Saturated Fat 5g (25%) Polyunsaturated Fat 3g Cholesterol 28mg (9%) Sodium 53mg (2%) Sugar 12g (24%)

Nutrition Facts

Serving: 36Bars

Amount Per Serving

Calories 157

% Daily Value*

Calories 157kcal 8%
Carbohydrates 19g 6%
Protein 1g 2%
Fat 9g 14%
Saturated Fat 5g 25%
Polyunsaturated Fat 3g 18%
Cholesterol 28mg 9%
Sodium 53mg 2%
Sugar 12g 24%

* Percent Daily Values are based on a 2,000 calorie diet.