Cream together the softened vegan butter and sugar with an electric mixer until the mixture becomes light and fluffy (2-3 minutes).
Add vanilla extract and salt to the mixture.
Gradually add the flour in 1/2-cup increments until the dough comes together.
Shape the dough into a log and wrap it in parchment paper or plastic wrap. Refrigerate for 1 hour. To prevent the dough from flattening, wrap a thick dish towel around the cookie dough log.
Preheat the oven to 400°F/205°C.
Optional: Spread 2 tablespoons of coarse sugar on a large plate. Roll the cookie dough log in sugar to coat.
Use a sharp knife to slice the cookies into approximately 1/2-inch thickness.
Transfer the cookies to a baking sheet lined with parchment paper. Bake for 10-11 minutes, until the bottom edges start to brown. Remove from the oven and allow them to cool.