Add elderberries, cinnamon stick, ginger, and vanilla into your pressure cooker pot. Peel your orange and lemon, trying not to get any of the white pith. Add peel to the pot and juice the orange and lemon into the pot.
Add water and seal lid. Ensure that the pressure valve is set to sealing.
Set your pot to manual, high pressure for 10 minutes.
When the pressure cooker is finished, quick release the pressure.
Using a mesh strainer, pour the syrup into the strainer. Press on the mixture with the back of a spoon to get all the liquid out. Dispose of the berry mixture left in the strainer and allow the syrup to cool.
When the syrup is cool, stir in the honey until it is dissolved. Pour mixture into jars and store in the refrigerator for up to one month.
* I did not write this post to give any sort of medical advice. I am not a medical professional nor am I responsible for your choices. Nothing should replace any advice that your doctor has given you. I encourage you to do your own research and talk to your doctor before using this or any home remedy.