2 cups powdered sugar
2 to 4 tablespoons milk or heavy cream
1/2 teaspoon vanilla extract
2 tablespoons softened butter, optional
Pinch of salt, optional
Add powdered sugar to a bowl
Add milk or cream a little at a time
Add vanilla extract
Add softened butter if using
Add salt if using
Stir until smooth
Add more liquid for a thinner frosting
Add more powdered sugar for a thicker frosting