- Preheat oven to 350 degrees. 
- In the bowl of a mixer, beat the butter, sugar, and vanilla until creamy. 
- With the mixer running, sprinkle in the sea salt and guar gum. 
- Add the remaining flour and beat thoroughly to mix. Dough will take a bit to come together and will look like crumbs, but as the butter warms, it blends. 
- Refrigerate dough to firm up, 10-20 minutes (this will depend on the temperature of your butter when you started).