Preheat the oven to 350°F (175°C).

In a mixing bowl, cream together the softened butter and sugar until light and fluffy.

Add the vanilla extract and mix well.

Gradually add the sifted flour and salt, mixing until just combined.

Transfer the dough to a piping bag fitted with a star tip.

Pipe the dough onto a baking sheet lined with parchment paper in desired shapes.

Sprinkle with colored sugar or chopped nuts if desired.

Bake in the preheated oven for 12-15 minutes or until the edges are lightly golden.

Remove from the oven and let cool on a wire rack.