Lime icing: Combine 1 cup icing sugar mixture with 2 tablespoons lime juice until smooth, then drizzle on cake or cupcakes, dust with extra icing sugar, and top with very fine slices of lime zest.
Lime icing: Combine 1 cup icing sugar mixture with 2 tablespoons lime juice until smooth, then drizzle on cake or cupcakes, dust with extra icing sugar, and top with very fine slices of lime zest.
