Elderberry cordial syrup recipe. We have Elders in the garden, well in the public bit of land that overhangs our garden, could harvest the elderberries and make cordial with them. Wouldn't have a bother about the bottles exploding and apparently it keeps for two years! Plus include cocktail recipe on the label. Hmmm, can't pick elderberries until September so will need to use the flowers for something in April/May time.