In another large bowl, cream the butter with a hand mixer for about 1-2 minutes until it's smooth.
1 cup unsalted butter, at room temperature (226g)
Add the sugar, and the orange zest to the butter and beat until creamy, about 3 minutes, scraping the bowl frequently.
2 cups granulated sugar (400g), 1 medium orange
Add the vanilla and the eggs, one at a time, beating for about a minute after each addition. Scrape the sides of the bowl a few times until everything is well incorporated.
2 teaspoons vanilla, 3 medium eggs, at room temperature
Add the dry ingredients, the orange juice, the cognac/brandy, and the milk into the butter mixture, in two alternating batches, beating on high speed until thoroughly combined. Don't overmix.
¼ cup cognac or brandy (60ml), 1 cup milk (250ml)
Pour the batter into the prepared pan and bake for 55 – 65 minutes, or until an inserted toothpick in the middle comes out clean.
When the cake is done, take it out of the oven and let it cool in the pan for 15-20 minutes.
Carefully remove the cake from the pan and peel off the parchment paper. Invert the cake onto a serving platter. Then, with the bottom of the cake facing up, carefully insert the foil-wrapped coin. Flip the cake over so the top is facing up.
Dust the cake generously with powdered sugar and decorate with pomegranate seeds and rosemary sprigs, if desired.
Enjoy!
Notes
TOP TIPS
Use room-temperature ingredients for a smooth batter.
Avoid overmixing to keep the cake light.
Check doneness with a toothpick after 45 minutes.
Insert the coin after baking to prevent it from sinking.