I preheat the oven to 350°F (175°C), line a 10×15-inch jelly roll pan with parchment, and lightly grease it. In a large bowl, I beat 3 eggs and 1 cup sugar until thick and pale, then mix in ⅔ cup pumpkin puree. In another bowl, I whisk ¾ cup flour, 1 tsp baking powder, ½ tsp baking soda, ½ tsp cinnamon, ½ tsp nutmeg, ¼ tsp cloves, and ¼ tsp salt. I fold the dry ingredients into the wet until just combined, pour into the pan, and bake for 12–15 minutes until the cake springs back when touched.