Gather your dried plantain leaves and add them to a clean and dry pint jar.
Pour oil over the plantain until completely submerged. Leave a little room at the top of the jar.
Place a lid on the jar and close snugly.
Find a warm area in your home and let the plantain infuse for 2-4 weeks.
Occasionally, rotate or gently shake the jar to help it blend together.
Strain the plantain out of the oil by pouring through a coffee filter, butter muslin or fine mesh strainer into a clean, dry jar.
Strain the oil. Label and date the jar. (Oil will be good for up to one year, store in a cool, dark location.)