3/4 cup butter, softened to room temperature
2 tablespoons powdered sugar
1 tablespoon grated orange peel
2 tablespoons orange liqueur
2 tablespoons orange juice
1/4 teaspoon vanilla extract
1/4 teaspoon ground nutmeg
1/8 teaspoon salt
Combine 3/4 cup butter, powdered sugar, and grated orange peel in a mixer bowl and beat until light and fluffy. Beat in orange liqueur, orange juice, vanilla, nutmeg, and salt.