Carrot Cake Doughnut care of Doughnut Plant. Back in my early July post, I vowed to try this doughnut when we came back. Very enjoyable, with cream cheese in the doughnut to top it off. It really is like a piece of cake almost. I almost think I like the Oatmeal better, dare I say it? Maybe I just need to give this one another try since carrot cake is one of my favorite things in the world.