Bake for 15 mins until a toothpick comes out clean. Beat eggs on high speed for 5 mins, gradually adding granulated sugar.
Mix in pumpkin puree and lemon juice. Sift flour, baking powder, cinnamon, ginger, nutmeg, and salt in a bowl.
Gently fold dry mix into pumpkin mixture. Evenly spread batter, bake for 15 mins.
Sprinkle a clean tea towel generously with powdered sugar. Invert baked cake onto the sugared towel, roll cake, and let it cool in the rolled position.
Beat powdered sugar, cream cheese, butter, and vanilla extract until smooth. Unroll cooled cake, spread cream cheese mixture evenly. Reroll cake without the towel, sprinkle with powdered sugar, then slice and serve.