To do this, you'll want to move the cake from a plate to the baking rack and that can be tricky unless you se the cake on a parchment round ... or for 3 months if frozen. Wrap tightly in plastic ...

Preheat oven to 350°F. Lightly coat a 9-inch round cake pan with baking spray; set aside. Whisk together yogurt, eggs, granulated sugar, oil, orange zest, and vanilla extract in a large bowl ...