Blueberry-Lemon Cake

Ingredients

• 1 cup fresh blueberries container), plus more for garnish
• Vegetable shortening, for greasing pans
• 2 cups granulated sugar
• ½ teaspoon kosher salt
• 1 ½ cups fresh blueberries containers
• ½ teaspoon baking soda
• 1 pkg. powdered sugar
• 1 cup butter, softened
• 2 teaspoons vanilla extract
• 1 tablespoon grated lemon zest plus 1/4 cup fresh juice
• 3 cups plus 1 Tbsp. all-purpose flour, divided, plus more for pans
• 1 tablespoon grated lemon zest, plus 2 Tbsp. fresh juice, divided
• 2 teaspoons baking powder
• 4 large eggs
• 1 ¼ cups whole buttermilk