Grate the carrots finely.
Mix eggs, sugar, and cooking oil together.
Sift flour, baking powder, and cinnamon powder into the batter.
Add the grated carrots and chopped walnuts into the batter and mix well.
Pour the batter into a pan and bake in a 170℃ oven for 40 minutes.
Let it cool, then top with cream cheese frosting.