Blueberry Zucchini Squares | Reader's Digest Canada

Ingredients

• 2 cups shredded zucchini (do not pack)
• 1/2 cup buttermilk
• 1 tbsp grated lemon zest
• 3 tbsp lemon juice
• 1 cup butter (softened)
• 2-1/2 cups sugar
• 2 large eggs (room temperature)
• 3-1/4 cups all-purpose flour (plus 2 tbsp, divided)
• 1 tsp baking soda
• 1/2 tsp salt
• 2 cups fresh or frozen blueberries
• 2 cups confectioner's sugar
• 1/4 cup buttermilk
• 2 tsp lemon juice
• 1/8 tsp salt