Apple Oven Pancake

INGREDIENTS

• 4 Tbs. (1/2 stick) unsalted butter
• 4 cups diced peeled tart apples, such as Granny Smith
• 2 Tbs. firmly packed light brown sugar
• Juice of 1/2 lemon
• 1/2 tsp. ground cinnamon
• 4 eggs, lightly beaten
• 1 cup milk
• 1 cup all-purpose flour
• 1 tsp. vanilla extract
• 1/8 tsp. salt
• Confectioners’ sugar for dusting