That sounds like an interesting combination. I wasn't familiar with tonka, so had to look it up :
Tonka bean is a tree. The fruit and seed are used to make medicine.
Despite serious safety concerns, people take tonka bean as a tonic; to increase sexual desire (as an aphrodisiac); and to treat
cramps,
nausea, cough, spasms,
tuberculosis, wasting due to chronic disease, swelling caused by a blockage in the lymph system (
lymphedema), and a parasitic disease called schistosomiasis.
Some people apply tonka bean directly to the affected area for
mouthulcers,
earache, and
sore throat.
In manufacturing, coumarin, one of the active constituents of tonka bean, is used as a flavoring and fragrance in various products in food, liquor,
tobacco, soap, and
cosmetics.
In foods, the seeds are used to make a nutty-flavored beverage.
