Lemon and Mascarpone Blondie Recipe

Ingredients

• 1/2 cup (1 stick, 112 g) of butter, melted
• 1 cup (220 g) of tightly packed dark brown sugar
• 1 egg, lightly beaten
• 1/4 teaspoon of vanilla
• 8 ounces (225 g) of mascarpone cheese
• 2 tablespoons of lemon juice
• 2 1/2 teaspoons of lemon zest
• 1/2 teaspoon baking powder
• 1/8 teaspoon of baking soda
• Pinch of salt
• 1 cup (128 g) of all-purpose flour