Ingredients:
- 1 cup (225g) unsalted butter, softened
- 1 cup (200g) granulated sugar
- 2 large eggs, room temperature
- 2 tbsp (30ml) fresh lemon juice
- 1 tbsp (6g) lemon zest
- 1 tsp (5ml) vanilla extract
- 2 ½ cups (310g) all-purpose flour
- 1 tsp (5g) baking powder
- ½ tsp (3g) salt
- 8 oz (225g) cream cheese, softened
- ¼ cup (57g) unsalted butter, softened
- 3 cups (360g) powdered sugar
- 1 tbsp (15ml) fresh lemon juice
- 1 tsp (2g) lemon zest
Instructions:
- Preheat the oven to 350°F (175°C) and line a 9x13 inch baking pan with parchment paper.
- Cream together 1 cup softened butter and granulated sugar until pale and fluffy.
- Beat in the eggs one at a time, then stir in 2 tbsp lemon juice, 1 tbsp lemon zest, and vanilla extract.
- In a separate bowl, whisk together all-purpose flour, baking powder, and salt.
- Gradually fold the dry ingredients into the wet mixture until just combined; do not over-mix.
- Spread the batter evenly into the prepared pan and bake for 20–25 minutes until edges are barely golden.
- Allow the bars to cool completely in the pan.
- Beat softened cream cheese and ¼ cup butter together until smooth.
- Gradually add powdered sugar, 1 tbsp lemon juice, and 1 tsp lemon zest; whip on high for 2 minutes until airy.
- Spread the frosting evenly over the cooled bars and chill in the refrigerator for 1 hour before slicing into 24 squares.