In a large bowl, whisk eggs for 30 seconds. Add granulated sugar, pumpkin puree and vanilla. Whisk until combined. Add flour, baking powder, pumpkin pie spice and salt to batter. Whisk until everything is smooth and combined. Pour batter onto prepared jelly roll pan. Spreading out evenly. Bake for 15 minutes or until toothpick inserted in center comes out clean. Remove from oven.