Preheat oven to 350 degrees, grease and flour doughnut pan
In bowl whisk together egg, buttermilk, 2 tablespoons of orange juice, vanilla and zest
In separate bowl mix flour, cocoa powder, cardamom, nutmeg, and baking soda
Working in batches, mix dry ingredients in with wet ingredients
Pour batter into doughnut pan, about ¾ full. Bake for 10 minutes. Do toothpick test and then remove and cool in pan on rack.
Meanwhile, in double boiler, melt chocolate. Add butter and once it's melted, stir in whipping cream. Add tablespoon of orange juice if you like your spiced orange chocolate doughnuts extra orangey.
Once doughnuts are cool, remove from pan and slather in ganache (or dust with powdered sugar if you're boring like that).
Recipe by Talia Bunting at https://www.taliabunting.com/spiced-orange-chocolate-doughnut-recipe/