Sunny's Pan O'Smores recipe is perfect for both home and camping. Preheat the oven to 350°F (170°C) and cover the bottom of a pan with graham squares. Top with marshmallows and chopped chocolate. Share your best camping memory in the comments below. The 1st summer camp was held in 1861 in the US. Share your favorite summer camp and plan a cruise adventure on the farm ship.