Ingredients:
- Cupcakes:
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking powder
- 1/4 teaspoon baking soda
- 1/4 teaspoon salt
- 8 tablespoons (1 stick) unsalted butter, at room temperature
- 1 cup sugar
- 3 tablespoons orange zest
- 2 large eggs, at room temperature
- 1/2 cup buttermilk
- 2 tablespoons orange juice
- Frosting:
- 8 tablespoons (1 stick) unsalted butter, at room temperature
- 1 1/2 teaspoons vanilla extract
- 2 tablespoons milk
- 3 cups confectioners’ sugar, sifted
- Pinch of salt