Preheat oven to 325. Grease loaf pan or bunt pan. In bowl stir flour and salt.
In a separate bowl beat butter, sugar, tea leaves and vanilla until light and fluffy and the scent of the leaves emerge. Add eggs one at a time, beating well after each. Gradually add flour mixture in 3 parts beating until combined, scraping down sides as necessary. Bake for 1 hour.
To prepare glaze; in a small sauce pan bring 3/4 c water to boil then seep 4 tea bags for 5 minutes then add 2 c powdered sugar. When cake has fully cooled drizzle glaze over it.