Simmer berries, spices and water in a sauce pot, stirring occasionally until liquid is reduced by half. This should take around 45 minutes.
Strain liquid into bowl and discard elderberries. This works best using something like a fine mesh strainer, coffee filter, sheer curtain, or fine cheesecloth.
Mix in honey and then add apple cider vinegar mixing well.
Pour into clean glass jar and refrigerate for up to 3 months.
Notes
Standard Dose for Cold and Flu Prevention:
1 tsp daily for kids and 1 tbsp daily for adults
If sick, take the above dose every 2-3 hours as needed.