Blueberry Lemon Oven Pancake

Ingredients (11)

• 4 large eggs
• 1 cup  milk
• 1  teaspoon pure vanilla extract
• 1 1/2 teaspoons freshly grated lemon zest
• 1/2 cup all purpose flour
• 1/2 cup whole wheat pastry flour
• 3 tablespoons  granulated sugar
• 1/2  teaspoon kosher salt
• 1/4 cup melted unsalted butter
• 1/2 cup  blueberries
• Serving ideas: powdered sugar;