Puffed Pear Pancake

Preheat the oven to 450 ° F. Place a 12-inch cast-iron skillet or other skillet suitable for roasting in the oven. In a medium bowl, whisk together the eggs, milk, flour, extract, and salt until smooth. In a separate bowl, combine the pears with the sugar and cinnamon.Carefully remove the preheated skillet from the oven and add the butter, whisking until it melts. Place the pears in a single layer on the pan and cover with the batter.Return the pan to the oven and bake for 25 minutes or until fluffy and golden brown. Serve with maple syrup.