Sprinkle the chicken thighs with your rub (or combination of) of choice. Sear off on the BBQ.
In a large foil pan combine the wine, mushrooms, thyme and oregano, and a tablespoon of the rub used, stir to mix.
Add the chicken and onion.
Let simmer, uncovered, on medium heat on the BBQ (or about 350°F in the oven) for about 45 minutes.
Add the whipping cream, stir to mix, let cook for about another 15 min.