American Frosting Be The First To Review By monie5251996 recipe American Frosting makes a light, fluffy yet crisp topping, its soft white contrasting chocolate caraque. American Frosting Ingredients 1 egg white2 tbsp water1 tbsp light corn syrup1 tsp cream of tartar1 cup icing (confectioners) sugar, sifted Instructions Place the egg white, water, light corn syrup, and cream of tartar in a heatproof bowl. Whisk together until thoroughly blended. Stir in the icing (confectioners) sugar into the mixtire and place the bowl over a saucepan of simmering water. Whisk until th mixture becomes thick and white. Remove the bowl from the saucepan and continue to whisk the frosting until cool and thick, and the mixture stands up in soft peaks. Use immediately to fill or cover cakes.