"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!..."
INGREDIENTS
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1/2 cup unsalted butter, softened
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2 cups powdered sugar
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1 lemon, zested and juiced
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1 Tbsp heavy whipping cream
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1 cup unsalted butter, softened
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1 cup granulated sugar
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1 large egg
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1 tsp vanilla extract
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1 lemon, juiced and zested
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1/2 cup sour cream
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2 2/3 cup all-purpose flour
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1 tsp baking powder
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1/2 tsp baking soda
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1/2 tsp kosher salt