INGREDIENTS
1
Orange, large
2
Eggs, large
1 1/2 cups
All-purpose flour, unbleached
1 tsp
Baking powder
1/2 tsp
Baking soda
3 1/2 cups
Confectioners' sugar
3/4 cup
Granulated sugar
1/2 tsp
Salt
1 pinch
Salt
1
Vanilla buttercream
1 1/2 tsp
Vanilla extract
1
Cupcakes
1/4 cup
Orange juice, freshly squeezed
1 cup
Butter, unsalted
1/4 cup
Heavy cream
1/2 cup
Sour cream
1 tsp
Kirsch