Sanitise your glass jar and lid.
If your dried mullein leaves are whole, use a knife to chop them up into small pieces. This is to maximise the surface area that is exposed to the alcohol when the tincture is steeping.
Add the dried mullein to your glass jar.
Cover the mullein with alcohol until the leaves are completely submerged.
Add a lid to the jar and shake it vigorously to ensure the alcohol is covering everything.
Date and label the tincture so that you remember when you made it and what it is. Set it in a cool, dark place away from direct sunlight for 6-8 weeks. You can leave it to sit for longer - this will result in a more concentrated tincture.
Try to shake the jar 3-4 times per week to make sure everything remains submerged in the alcohol.
After 6-8 weeks, strain off the tincture using cheesecloth or a fine mesh strainer. I recommend doing multiple strains to remove the fine hairs from your tincture.
Use a funnel to add the liquid into a clean amber glass dropper bottle.
Date and label the tincture so you don’t forget what it is.