Vanilla Cupcakes with Mango Frosting

For these cupcakes I made a standard vanilla cupcake, and for the frosting I decided to make a simple Mango Buttercream.  I had a mango that we didn't eat, so I pureed that in a food processor.  Meanwhile I beat together 1 stick of butter with a dash of salt, then added about a teaspoon of vanilla, powdered sugar and spoonfuls of the mango puree until the right taste and consistency was reached.