Sift 1 ½ cups icing sugar into large bowl. Mix in 4 tsp. milk and 1 ½ tsp. lemon juice until smooth. The icing should be the thickness of honey. If texture is too thick, stir in additional milk a spoonful at a time. If icing is too thin, stir in additional sifted icing sugar, a heaped spoonful at a time.