In a large mixing bowl, cream sugar and butter, then add vanilla extract. Mix to combine.
Add flour and salt. Mix to combine.
Mixture should be crumbly. Use hands to press everything together into a ball. Wrap in parchment or wax paper. Refrigerate for 1 hour.
Pre-heat oven to 350°F.
Remove dough from fridge and shape in rectangular shape.
Using a pastry cutter, slice into 1/2-inch thick rectangular cookies
Place cookies 2-inch apart on baking sheet lined with parchment paper.
Bake for 20 minutes.
Remove cookies from oven and let it cool on a baking rack for 15-20 minutes.
Chop chocolate into small pieces, and heat under low heat in a sauce pan. Stir continuously until chocolate melts. Remove from heat and transfer to a deep ramekin.
Dip cookies into melted chocolate. Place on a plate lined with wax paper. Refrigerate for 20 minutes so that chocolate hardens. (See Note 1)
Serve and enjoy!
Notes
Note 1: Cookies can be left in room temperature while chocolate hardens as well, it will just take longer (depending on temperature in the house etc).