Preheat oven to 375° and line two cookie sheets with parchment paper.
Mix butter, ½ cup icing sugar, and vanilla extract in a stand mixer until fluffy. Be sure to scrape the sides mid way so all butter is mixed in.
Add flour, tea and salt and mix until well incorporated. Fold in the nuts (make sure they're very finely chopped!) until thoroughly mixed.
Scoop the dough and form into 1" balls with your hands. Place on the prepared cookie sheet, leaving at least one inch between each ball.
Bake for approximately 10-12 minutes, until the bottoms are slightly brown. While baking, fill a small bowl with the remaining ½ cup of icing sugar.
Remove cookies from the oven and cool for one minute. Roll each cookie in the icing sugar until coated, then place on rack to cool.
The first icing sugar layer tends to melt (which makes them all the more delicious), so once the cookies are cool, you may want to re-roll them for additional coverage.
Recipe by Squirrelly Minds at http://squirrellyminds.com/2018/12/04/earl-grey-snowball-cookies/