In a bowl combine the sugar and butter until light and creamy. Add in the egg and beat until combined. Add in the Vanilla Paste and mix just until incorporated. In a different bowl, whisk together the flour, baking powder, and salt. Add the flour mixture to the egg mixture and mix just until combined.
To a parchment-lined quarter sheet pan, add the dough. Cover with plastic wrap and press or roll the dough into an even layer on the pan. Replace plastic wrap, cover the entire pan, and place it in the fridge for at least an hour.
When ready to bake, preheat the oven to 350F. Remove the pan from the fridge, uncover, and bake for 14-18 minutes or until the cookie is light golden brown and has just a little give. Place the pan on a cooling rack and allow it to cool completely.
Once cooled, top with your favorite topping(s) and serve!