Preheat the oven to 180°C.
Mix the dry ingredients in a bowl.
Grate the carrots.
Peel the orange, then remove the white membranes and pips. Put the flesh into a small food processor and whiz until you get a purée. Add this to the flour mixture together with the grated carrots, oil & vanilla, then combine.
Spoon the mixture into silicon moulds (shaped rose, heart, egg, bundt cake etc) or mini tins, large muffin baskets etc.
Bake in the middle of the oven for 25 minutes or until golden and an inserted skewer comes out clean.
Let the cakes cool then decorate them according to your liking and/or occasion.