Thoroughly clean lemon and cut off the ends.

Cut off ends and remove peel of onion.

Finely slice onion and lemon into about ⅛ inch thick pieces.

Add ¼ cup of honey to the bottom of the jar.

Layer a third of the sliced lemons over the honey, followed by a third of the onions.

Add ¼ cup of honey over the lemon and onion layer.

Add another third portion of the lemon sliced, followed by another third of the onions. Gently push down to flatten layers.

Add ¼ cup of honey over lemon and onion layer.

Add the rest of the lemon and onion slices, then push down.

Top the layers with the last ¼ cup of honey.

Place the lemon ends on top and gently push down to remove air from the layers.

Using the lemon ends as a weight to keep the sliced lemons and onions submerged in the raw honey, push down on the lemon ends and place a small square of parchment paper over the top, followed by the jar lid.

Store the jar at room temperature for 24-48 hours to allow the raw honey to extract the beneficial properties from the lemon and onion.

After allowing the raw honey to extract beneficial properties from the onion and lemon, remove the lemon ends from the top.

Place a fine mesh strainer over a pitcher and pour the jar of honey, onions, and lemons into it. Allow the honey syrup to strain for about 30 minutes.

If using any optional add-ins listed above, stir them in now.

After straining, pour syrup into an airtight glass bottle or jar. To protect from rust, you can place a piece of parchment paper or wax paper under the lid.

Store cough syrup in the refrigerator for up to a month, or in the freezer for up to 9 months. Make sure to monitor for signs of spoilage such as mold or bad smells.

Shake bottle or jar before use and take 1 tablespoon as needed for adults, or 1 teaspoon at a time as needed for small children. Do not give to infants under 1 year old.