Non Buttercream Icing. Use Cream Cheese Together with Butter. It has no shortening in it which means it wont be entirely white.
You can add gel food coloring at this point. Browse buttercream flavors you want like vanilla chocolate swiss meringue and more. When you need to add coloring to icing use color paste.
Add the condensed milk and beat on the medium speed of an electric mixer until smooth and creamy about 3 to 5 minutes.
Much less sweet than buttercream. Wilton buttercream frosting recipes make the best baked treats. You can add gel food coloring at this point. I like to use this buttercream recipe most often even when using it as the finish on a buttercream cake.