Cream the softened butter using a whisk or hand mixer until smooth and fluffy.

Sift powdered sugar and salt into the creamed butter and mix until well combined.

Add egg yolks one at a time, mixing thoroughly after each addition.

Add the contents of Earl Grey tea bags and gently fold into the mixture using a spatula.

Sift in the flour and almond flour, then mix gently in a cutting motion until the dough comes together.

Shape the dough into a log or rectangle, wrap in plastic wrap, and chill in the freezer for 30-60 minutes.