Mocha Buttercream Frosting - cooking recipe

Ingredients

3/4 cup butter, softened
4 cups icing sugar, sifted
4 teaspoons instant coffee, dissolved in 1/4 cup boiling water (I use an instant espresso)
1/2 teaspoon salt
1/4 cup boiling water
1/2 cup unsweetened cocoa
1 1/2 teaspoons vanilla

Preparation

Cream butter until light and fluffy, about 4 minutes and beat in 1/3 cup of icing sugar, coffee mixture, salt, half the remaining icing sugar, the cocoa and vanilla.
Beat in remaining icing sugar slowly and beat buttercream at high speed until it is light and fluffy.