Before you get started, make sure your spice grinder is clean. An easy way to clean it is to throw a few pieces of fresh bread in it and pulse. The bread will pick up any leftover spices/coffee.
If using coarse sea salt, pulse the salt a few times in the grinder until desired texture.
Your vanilla beans should be dried, but if you'd like to use new beans (extra flavor), split them open and dry out in your oven until they are brittle to the touch. Cool.
Grind complete vanilla beans and place in small bowl. Whisk with salt.
Keep in a cool, dry place and use in your cooking and baking!