How to make buttercream.how to decorate buttercream cake . 

Buttercream recipe
Butter 500g
Icing sugar 1kg(1000)gram
Vanilla flavor 1 teaspoons
Food coloring:optional
Procedure
Add your butter in a bowl,then add icing sugar little at a time,gradually mix until well combined. Add your flavor and mix. You can add food coloring of your choice.