1) Beat the vegan butter spread in a small mixing bowl until it's a pale color. Beat in the fruit jam.
2) Sift the sugar twice. The vegan powdered sugar must be pure sugar, not frosting mix which contains cornstarch.
3) Transfer the jam mixture to a larger mixing bowl, and beat in the sugar a couple of tablespoons at a time. Add the vanilla extract and beat the mixture until very soft and smooth.
You can substitute 2 tablespoons of sugar with cocoa or use coconut liqueur or fruit schnapps instead of vanilla extract.