Blackberry Lemon Blondies - Oregon Raspberries & Blackberries

Ingredients

• 1 Cup unsalted butter (at room temperature (2 sticks))
• 3/4 Cup sugar
• 2 large eggs
• 2/3 Cup fresh squeezed lemon juice
• 2 1/4 Cups all purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon salt
• 1 Cup frozen blackberries (chopped)
• 1 Cup frozen blackberries
• 2 Tablespoons sugar
• 2 Tablespoons lemon juice
• 1 Cup powdered sugar