What you need according to the original recipe
1 cup of water (to start- if you leave this on for a long period of time you'll need to add more)
1 lemon, sliced thin
2 fresh sprigs of rosemary
1 teaspoon of vanilla
Add it all to a pot and let it simmer.
However...we had something in the dehydrator overnight that was an utter recipe failure and melted the dehydrator. I decided to try this again to see if at least it could get the smell out.
I made some changes this time:
1 cup of water
1 lemon, sliced thin, HOWVER, take 2 pieces and squeeze the juice into the water before throwing those two slices in
2 fresh sprigs of rosemary, each one snapped in half
3 teaspoons of vanilla extract
I heated to a boil and then reduced to a simmer.
My whole house smells DELICIOUS.