I spent my Valentine's Day making a multitude of scrumptious things, one of them being my grandmother's deliciously simple recipe for carrot cake. There's not too many ingredients, it's not time-consuming (the only real work comes when you grate the carrots), and assembly is non-existent because it's baked in a tube pan instead of cake pans. I stayed mostly true to her recipe, but I did put sweetened coconut on the outside of the cake after frosting, and I used whole wheat pastry flour instead of all-purpose in the cake.
If you don't have much time but you want to make something elegant and delicious, make this cake. Everyone will love it.