With fresh leaf: Wash and remove fresh leaves from the stem. Pick through and remove any brown or wilted ones. Coarsely chop the fresh leaves into smaller pieces before placing them in a clean glass jar.
With dry leaf: Crumble the dry leaves into.a clean glass jar by rubbing them between your fingertips and thumb.
Cover contents completely with alcohol. Place the lid on and secure tightly.
Shake the jar and leave on the counter, out of direct sunlight, for 24-36 hours. Shake occasionally. DO NOT leave the extract to sit for longer than 36 hours.
Strain the leaves out through a fine mesh cheesecloth, nut milk bag, or coffee filter. Squeeze to remove all liquid.
Pour the extract into a small saucepan and very gently heat for 20-30 minutes, stirring often. DO NOT BOIL. Heat just enough so the alcohol evaporates off and liquid reduces in volume.