Simple Buttercream Frosting

Why I Love This Recipe
Tonight, in preparation for a cupcake party my friend and I are hosting on Friday, I make a few batches of buttercream frosting and festively colored them.
The buttercream frosting recipe I made doesnt really have exact measurements... I just go by the texture or stiffness to determine if its done. Here is what I used:
Ingredients You'll Need
unsalted butter
shortening
vanilla extract
half & half
powdered sugar
Directions
In a stand mixer, cream equal parts of butter and shortening.
Add vanilla.
Alternate adding a splash of half & half and a cup of powdered sugar.
The consistency to achieve for decorating cakes is a "stiff" frosting.
If you can invert your batter bowl with a spatula or spoon suspended in the frosting without it falling out, you've hit the stiff consistency.