- 2 egg whites
- 2 tsp lemon juice
- 3 cups confectioners sugar, sifted
In the bowl of your electric mixer, fitted with a whip attachment, beat the egg whites with the lemon juice until combined. Add the sifted powdered sugar and beat on low speed until combined and smooth. The icing needs to be used immediately or transferred to an airtight container as royal icing hardens when exposed to air. Cover with plastic wrap when not in use.